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57545066802 = 23145118733529
BaseRepresentation
bin110101100101111101…
…000000100100110010
312111112102012021111110
4311211331000210302
51420323014114202
642234050254150
74105006666026
oct654575004462
9174472167443
1057545066802
112244a765453
12b19b887356
135570c798b2
142adc814386
15176be7a26c
hexd65f40932

57545066802 has 32 divisors (see below), whose sum is σ = 115263593280. Its totient is φ = 19152806400.

The previous prime is 57545066801. The next prime is 57545066833. The reversal of 57545066802 is 20866054575.

It is a happy number.

It is a super-2 number, since 2×575450668022 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57545066801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16304574 + ... + 16308102.

It is an arithmetic number, because the mean of its divisors is an integer number (3601987290).

Almost surely, 257545066802 is an apocalyptic number.

57545066802 is an abundant number, since it is smaller than the sum of its proper divisors (57718526478).

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

57545066802 is a wasteful number, since it uses less digits than its factorization.

57545066802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6858.

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 57545066802 in words is "fifty-seven billion, five hundred forty-five million, sixty-six thousand, eight hundred two".

Divisors: 1 2 3 6 1451 1873 2902 3529 3746 4353 5619 7058 8706 10587 11238 21174 2717723 5120579 5435446 6609817 8153169 10241158 13219634 15361737 16306338 19829451 30723474 39658902 9590844467 19181688934 28772533401 57545066802