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57142405500 = 2235389428033
BaseRepresentation
bin110101001101111100…
…111110100101111100
312110111100111222000220
4311031330332211330
51414011423434000
642130104021340
74062020301255
oct651574764574
9173440458026
1057142405500
1122263442014
12b0a8a61850
135508715b7b
142aa1159b2c
15174693d1a0
hexd4df3e97c

57142405500 has 96 divisors (see below), whose sum is σ = 168268726080. Its totient is φ = 15066726400.

The previous prime is 57142405471. The next prime is 57142405519. The reversal of 57142405500 is 550424175.

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 31 ways as a sum of consecutive naturals, for example, 80517 + ... + 347516.

It is an arithmetic number, because the mean of its divisors is an integer number (1752799230).

Almost surely, 257142405500 is an apocalyptic number.

57142405500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

57142405500 is an abundant number, since it is smaller than the sum of its proper divisors (111126320580).

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

57142405500 is a wasteful number, since it uses less digits than its factorization.

57142405500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428144 (or 428132 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 33.

Adding to 57142405500 its reverse (550424175), we get a palindrome (57692829675).

The spelling of 57142405500 in words is "fifty-seven billion, one hundred forty-two million, four hundred five thousand, five hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 89 100 125 150 178 250 267 300 356 375 445 500 534 750 890 1068 1335 1500 1780 2225 2670 4450 5340 6675 8900 11125 13350 22250 26700 33375 44500 66750 133500 428033 856066 1284099 1712132 2140165 2568198 4280330 5136396 6420495 8560660 10700825 12840990 21401650 25681980 32102475 38094937 42803300 53504125 64204950 76189874 107008250 114284811 128409900 152379748 160512375 190474685 214016500 228569622 321024750 380949370 457139244 571424055 642049500 761898740 952373425 1142848110 1904746850 2285696220 2857120275 3809493700 4761867125 5714240550 9523734250 11428481100 14285601375 19047468500 28571202750 57142405500