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131132020310100 = 223252415335083613
BaseRepresentation
bin11101110100001110001101…
…011111010100000001010100
3122012022002122221221100022200
4131310032031133110001110
5114141431334144410400
61142521115105524500
736422655464446665
oct3564161537240124
9565262587840280
10131132020310100
1138867860951117
121285a320343730
1358229091611c4
142454b7613536c
1510260a11e8b00
hex77438d7d4054

131132020310100 has 108 divisors (see below), whose sum is σ = 411125015140476. Its totient is φ = 34960117685760.

The previous prime is 131132020310099. The next prime is 131132020310143. The reversal of 131132020310100 is 1013020231131.

131132020310100 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 320 + 20 + 310 + 10 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 67558634992836 + 63573385317264 = 8219406^2 + 7973292^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13804107 + ... + 21279506.

Almost surely, 2131132020310100 is an apocalyptic number.

131132020310100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131132020310100 is an abundant number, since it is smaller than the sum of its proper divisors (279992994830376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131132020310100 is a wasteful number, since it uses less digits than its factorization.

131132020310100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35087786 (or 35087776 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 131132020310100 its reverse (1013020231131), we get a palindrome (132145040541231).

The spelling of 131132020310100 in words is "one hundred thirty-one trillion, one hundred thirty-two billion, twenty million, three hundred ten thousand, one hundred".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 25 30 36 45 50 60 75 90 100 150 180 225 300 450 900 4153 8306 12459 16612 20765 24918 37377 41530 49836 62295 74754 83060 103825 124590 149508 186885 207650 249180 311475 373770 415300 622950 747540 934425 1245900 1868850 3737700 35083613 70167226 105250839 140334452 175418065 210501678 315752517 350836130 421003356 526254195 631505034 701672260 877090325 1052508390 1263010068 1578762585 1754180650 2105016780 2631270975 3157525170 3508361300 5262541950 6315050340 7893812925 10525083900 15787625850 31575251700 145702244789 291404489578 437106734367 582808979156 728511223945 874213468734 1311320203101 1457022447890 1748426937468 2185533671835 2622640406202 2914044895780 3642556119725 4371067343670 5245280812404 6556601015505 7285112239450 8742134687340 10927668359175 13113202031010 14570224478900 21855336718350 26226404062020 32783005077525 43710673436700 65566010155050 131132020310100