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3910125961 = 7289332
BaseRepresentation
bin1110100100001111…
…1100100110001001
3101002111120222110001
43221003330212021
531001443012321
61443555323001
7165616344100
oct35103744611
911074528401
103910125961
111727189565
129115b0461
134a4114c01
1429143b037
1517d420c91
hexe90fc989

3910125961 has 9 divisors (see below), whose sum is σ = 4549023111. Its totient is φ = 3351161352.

The previous prime is 3910125899. The next prime is 3910125979. The reversal of 3910125961 is 1695210193.

It is a happy number.

The square root of 3910125961 is 62531.

It is a perfect power (a square), and thus also a powerful number.

3910125961 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., 998876025 + 2911249936 = 31605^2 + 53956^2 .

It is not a de Polignac number, because 3910125961 - 215 = 3910093193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3910125961.

It is not an unprimeable number, because it can be changed into a prime (3910125161) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 433251 + ... + 442183.

Almost surely, 23910125961 is an apocalyptic number.

3910125961 is the 62531-st square number.

3910125961 is the 31266-th centered octagonal number.

It is an amenable number.

3910125961 is a deficient number, since it is larger than the sum of its proper divisors (638897150).

3910125961 is an frugal number, since it uses more digits than its factorization.

3910125961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17880 (or 8940 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 37.

The cubic root of 3910125961 is about 1575.4220366953.

The spelling of 3910125961 in words is "three billion, nine hundred ten million, one hundred twenty-five thousand, nine hundred sixty-one".

Divisors: 1 7 49 8933 62531 437717 79798489 558589423 3910125961