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11131250100 = 2235279469673
BaseRepresentation
bin10100101110111100…
…10110010110110100
31001201202102002112020
422113132112112310
5140244100000400
65040313153140
7542562031125
oct122736262664
931652362466
1011131250100
1147a2333a53
1221a79bb7b0
131085190129
147784b804c
154523682a0
hex2977965b4

11131250100 has 72 divisors (see below), whose sum is σ = 32614162560. Its totient is φ = 2930753280.

The previous prime is 11131250099. The next prime is 11131250113. The reversal of 11131250100 is 105213111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11131250100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 211137 + ... + 258536.

It is an arithmetic number, because the mean of its divisors is an integer number (452974480).

Almost surely, 211131250100 is an apocalyptic number.

11131250100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11131250100 is an abundant number, since it is smaller than the sum of its proper divisors (21482912460).

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

11131250100 is a wasteful number, since it uses less digits than its factorization.

11131250100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469769 (or 469762 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 15.

Adding to 11131250100 its reverse (105213111), we get a palindrome (11236463211).

The spelling of 11131250100 in words is "eleven billion, one hundred thirty-one million, two hundred fifty thousand, one hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 79 100 150 158 237 300 316 395 474 790 948 1185 1580 1975 2370 3950 4740 5925 7900 11850 23700 469673 939346 1409019 1878692 2348365 2818038 4696730 5636076 7045095 9393460 11741825 14090190 23483650 28180380 35225475 37104167 46967300 70450950 74208334 111312501 140901900 148416668 185520835 222625002 371041670 445250004 556562505 742083340 927604175 1113125010 1855208350 2226250020 2782812525 3710416700 5565625050 11131250100