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28756062313 = 1110325380461
BaseRepresentation
bin11010110001111111…
…101011000001101001
32202020001121022122221
4122301333223001221
5432343022443223
621113234114041
72035413332236
oct326177530151
982201538587
1028756062313
1111217058260
1256a641b921
1329337589b4
14156b15c78d
15b3480eb5d
hex6b1feb069

28756062313 has 8 divisors (see below), whose sum is σ = 31674816576. Its totient is φ = 25888069200.

The previous prime is 28756062287. The next prime is 28756062323. The reversal of 28756062313 is 31326065782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28756062313 - 233 = 20166127721 is a prime.

It is a super-2 number, since 2×287560623132 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28756062313.

It is not an unprimeable number, because it can be changed into a prime (28756062323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12689098 + ... + 12691363.

It is an arithmetic number, because the mean of its divisors is an integer number (3959352072).

Almost surely, 228756062313 is an apocalyptic number.

It is an amenable number.

28756062313 is a deficient number, since it is larger than the sum of its proper divisors (2918754263).

28756062313 is a wasteful number, since it uses less digits than its factorization.

28756062313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25380575.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 28756062313 in words is "twenty-eight billion, seven hundred fifty-six million, sixty-two thousand, three hundred thirteen".

Divisors: 1 11 103 1133 25380461 279185071 2614187483 28756062313