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32161392941 = 137234754693
BaseRepresentation
bin11101111100111101…
…111110100100101101
310002000101100001002112
4131330331332210231
51011331304033231
622435202133405
72215663220666
oct357475764455
9102011301075
1032161392941
11127042a4597
126296951265
1330570c9c32
1417b151636d
15c8376b92b
hex77cf7e92d

32161392941 has 4 divisors (see below), whose sum is σ = 32396147772. Its totient is φ = 31926638112.

The previous prime is 32161392877. The next prime is 32161392943. The reversal of 32161392941 is 14929316123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27939122500 + 4222270441 = 167150^2 + 64979^2 .

It is a cyclic number.

It is not a de Polignac number, because 32161392941 - 26 = 32161392877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32161392943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117377210 + ... + 117377483.

It is an arithmetic number, because the mean of its divisors is an integer number (8099036943).

Almost surely, 232161392941 is an apocalyptic number.

It is an amenable number.

32161392941 is a deficient number, since it is larger than the sum of its proper divisors (234754831).

32161392941 is a wasteful number, since it uses less digits than its factorization.

32161392941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234754830.

The product of its digits is 69984, while the sum is 41.

The spelling of 32161392941 in words is "thirty-two billion, one hundred sixty-one million, three hundred ninety-two thousand, nine hundred forty-one".

Divisors: 1 137 234754693 32161392941