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57748440612 = 22321149146451
BaseRepresentation
bin110101110010000100…
…110100011000100100
312112001120212201220210
4311302010310120210
51421232100044422
642310153255420
74113026434422
oct656204643044
9175046781823
1057748440612
1122544542185
12b237a04570
1355a4145725
142b1b834112
15177ec4e10c
hexd72134624

57748440612 has 48 divisors (see below), whose sum is σ = 135663623424. Its totient is φ = 19118820000.

The previous prime is 57748440569. The next prime is 57748440619. The reversal of 57748440612 is 21604484775.

It is not an unprimeable number, because it can be changed into a prime (57748440619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1219987 + ... + 1266437.

It is an arithmetic number, because the mean of its divisors is an integer number (2826325488).

Almost surely, 257748440612 is an apocalyptic number.

It is an amenable number.

57748440612 is an abundant number, since it is smaller than the sum of its proper divisors (77915182812).

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

57748440612 is a wasteful number, since it uses less digits than its factorization.

57748440612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47160 (or 47158 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 48.

The spelling of 57748440612 in words is "fifty-seven billion, seven hundred forty-eight million, four hundred forty thousand, six hundred twelve".

Divisors: 1 2 3 4 6 12 211 422 491 633 844 982 1266 1473 1964 2532 2946 5892 46451 92902 103601 139353 185804 207202 278706 310803 414404 557412 621606 1243212 9801161 19602322 22807441 29403483 39204644 45614882 58806966 68422323 91229764 117613932 136844646 273689292 4812370051 9624740102 14437110153 19249480204 28874220306 57748440612