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10042978057 = 77511910401
BaseRepresentation
bin10010101101001101…
…11010111100001001
3221220220122010221021
421112212322330021
5131032000244212
64340315512441
7503605622260
oct112646727411
927826563837
1010042978057
114293aaa072
121b43458721
13c40887688
146b3b4d5d7
153dba4c307
hex2569baf09

10042978057 has 8 divisors (see below), whose sum is σ = 11492978432. Its totient is φ = 8596800000.

The previous prime is 10042978051. The next prime is 10042978061. The reversal of 10042978057 is 75087924001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10042978057 is a prime.

It is a super-2 number, since 2×100429780572 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10042978051) 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, 949944 + ... + 960457.

It is an arithmetic number, because the mean of its divisors is an integer number (1436622304).

Almost surely, 210042978057 is an apocalyptic number.

It is an amenable number.

10042978057 is a deficient number, since it is larger than the sum of its proper divisors (1450000375).

10042978057 is an equidigital number, since it uses as much as digits as its factorization.

10042978057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911159.

The product of its (nonzero) digits is 141120, while the sum is 43.

The spelling of 10042978057 in words is "ten billion, forty-two million, nine hundred seventy-eight thousand, fifty-seven".

Divisors: 1 7 751 5257 1910401 13372807 1434711151 10042978057