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10881855047 = 71981818459
BaseRepresentation
bin10100010001001101…
…11110111001000111
31001002101010111211102
422020212332321013
5134241223330142
64555443530315
7533443145630
oct121046767107
931071114742
1010881855047
114684583838
12213838999b
1310455ccbab
14753318887
1543a503532
hex2889bee47

10881855047 has 8 divisors (see below), whose sum is σ = 13090953600. Its totient is φ = 8836393464.

The previous prime is 10881855029. The next prime is 10881855077. The reversal of 10881855047 is 74055818801.

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 10881855047 - 212 = 10881850951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10881854992 and 10881855010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10881855077) 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, 40909097 + ... + 40909362.

It is an arithmetic number, because the mean of its divisors is an integer number (1636369200).

Almost surely, 210881855047 is an apocalyptic number.

10881855047 is a deficient number, since it is larger than the sum of its proper divisors (2209098553).

10881855047 is an equidigital number, since it uses as much as digits as its factorization.

10881855047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81818485.

The product of its (nonzero) digits is 358400, while the sum is 47.

The spelling of 10881855047 in words is "ten billion, eight hundred eighty-one million, eight hundred fifty-five thousand, forty-seven".

Divisors: 1 7 19 133 81818459 572729213 1554550721 10881855047