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57408663156 = 223131645322367
BaseRepresentation
bin110101011101110100…
…101010111001110100
312111011220112020212120
4311131310222321310
51420033104210111
642212334515540
74101432404535
oct653564527164
9174156466776
1057408663156
112238a76a369
12b162065bb0
13554b92b490
142ac866868c
15175eed4406
hexd5dd2ae74

57408663156 has 48 divisors (see below), whose sum is σ = 144272884224. Its totient is φ = 17662340736.

The previous prime is 57408663121. The next prime is 57408663163. The reversal of 57408663156 is 65136680475.

It is a junction number, because it is equal to n+sod(n) for n = 57408663099 and 57408663108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2555485 + ... + 2577851.

It is an arithmetic number, because the mean of its divisors is an integer number (3005685088).

Almost surely, 257408663156 is an apocalyptic number.

It is an amenable number.

57408663156 is an abundant number, since it is smaller than the sum of its proper divisors (86864221068).

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

57408663156 is a wasteful number, since it uses less digits than its factorization.

57408663156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38840 (or 38838 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 57408663156 in words is "fifty-seven billion, four hundred eight million, six hundred sixty-three thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 16453 22367 32906 44734 49359 65812 67101 89468 98718 134202 197436 213889 268404 290771 427778 581542 641667 855556 872313 1163084 1283334 1744626 2566668 3489252 368004251 736008502 1104012753 1472017004 2208025506 4416051012 4784055263 9568110526 14352165789 19136221052 28704331578 57408663156