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47670525081 = 34588525001
BaseRepresentation
bin101100011001011000…
…100111110010011001
311120001020111120210000
4230121120213302121
51240112123300311
633522144443213
73305214530454
oct543130476231
9146036446700
1047670525081
1119242850073
1292a4919509
1346592778ba
1424431cc49b
151390100056
hexb19627c99

47670525081 has 10 divisors (see below), whose sum is σ = 71211525242. Its totient is φ = 31780350000.

The previous prime is 47670525073. The next prime is 47670525083. The reversal of 47670525081 is 18052507674.

47670525081 is a `hidden beast` number, since 4 + 76 + 70 + 5 + 2 + 508 + 1 = 666.

47670525081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 24809085081 + 22861440000 = 157509^2 + 151200^2 .

It is not a de Polignac number, because 47670525081 - 23 = 47670525073 is a prime.

It is a super-2 number, since 2×476705250812 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47670525083) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 294262420 + ... + 294262581.

Almost surely, 247670525081 is an apocalyptic number.

It is an amenable number.

47670525081 is a deficient number, since it is larger than the sum of its proper divisors (23541000161).

47670525081 is an equidigital number, since it uses as much as digits as its factorization.

47670525081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588525013 (or 588525004 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 47670525081 in words is "forty-seven billion, six hundred seventy million, five hundred twenty-five thousand, eighty-one".

Divisors: 1 3 9 27 81 588525001 1765575003 5296725009 15890175027 47670525081