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47145122132 = 2232173663749
BaseRepresentation
bin101011111010000100…
…010111100101010100
311111200121212100102112
4223322010113211110
51233023122402012
633354055330152
73256204632443
oct537204274524
9144617770375
1047145122132
1118aa3213059
129178980958
1345a446a094
1423d3502d5a
15135de1a122
hexafa117954

47145122132 has 12 divisors (see below), whose sum is σ = 82529632500. Its totient is φ = 23565227136.

The previous prime is 47145122117. The next prime is 47145122149. The reversal of 47145122132 is 23122154174.

It is a happy number.

47145122132 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 2 ways, for example, as 35628827536 + 11516294596 = 188756^2 + 107314^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1819007 + ... + 1844742.

It is an arithmetic number, because the mean of its divisors is an integer number (6877469375).

Almost surely, 247145122132 is an apocalyptic number.

It is an amenable number.

47145122132 is a deficient number, since it is larger than the sum of its proper divisors (35384510368).

47145122132 is a wasteful number, since it uses less digits than its factorization.

47145122132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666970 (or 3666968 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The spelling of 47145122132 in words is "forty-seven billion, one hundred forty-five million, one hundred twenty-two thousand, one hundred thirty-two".

Divisors: 1 2 4 3217 6434 12868 3663749 7327498 14654996 11786280533 23572561066 47145122132