Search a number
-
+
3130951925 = 52125238077
BaseRepresentation
bin1011101010011110…
…1000100011110101
322002012102211121102
42322213220203311
522403010430200
61234403055445
7140405436503
oct27247504365
98065384542
103130951925
111367382582
12734671585
133ab87439a
14219b73673
15134d0e6d5
hexba9e88f5

3130951925 has 6 divisors (see below), whose sum is σ = 3882380418. Its totient is φ = 2504761520.

The previous prime is 3130951909. The next prime is 3130951927. The reversal of 3130951925 is 5291590313.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 143017681 + 2987934244 = 11959^2 + 54662^2 .

It is not a de Polignac number, because 3130951925 - 24 = 3130951909 is a prime.

It is a super-2 number, since 2×31309519252 = 19605719913322411250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130951927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62619014 + ... + 62619063.

It is an arithmetic number, because the mean of its divisors is an integer number (647063403).

Almost surely, 23130951925 is an apocalyptic number.

It is an amenable number.

3130951925 is a deficient number, since it is larger than the sum of its proper divisors (751428493).

3130951925 is a wasteful number, since it uses less digits than its factorization.

3130951925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125238087 (or 125238082 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 3130951925 is about 55954.9097488326. The cubic root of 3130951925 is about 1462.9364689430.

The spelling of 3130951925 in words is "three billion, one hundred thirty million, nine hundred fifty-one thousand, nine hundred twenty-five".

Divisors: 1 5 25 125238077 626190385 3130951925