Search a number
-
+
31013525241 = 331148649083
BaseRepresentation
bin11100111000100011…
…001101011011111001
32222001101102022122000
4130320203031123321
51002003430301431
622125235251213
72145354420636
oct347043153371
988041368560
1031013525241
11121753655a6
126016449b09
132c0335958a
141702cb718d
15c17acc9e6
hex7388cd6f9

31013525241 has 8 divisors (see below), whose sum is σ = 45945963360. Its totient is φ = 20675683476.

The previous prime is 31013525227. The next prime is 31013525287. The reversal of 31013525241 is 14252531013.

31013525241 is a `hidden beast` number, since 3 + 1 + 0 + 135 + 2 + 524 + 1 = 666.

It is not a de Polignac number, because 31013525241 - 27 = 31013525113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1148649083 = 31013525241 / (3 + 1 + 0 + 1 + 3 + 5 + 2 + 5 + 2 + 4 + 1).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31013525201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 574324515 + ... + 574324568.

It is an arithmetic number, because the mean of its divisors is an integer number (5743245420).

Almost surely, 231013525241 is an apocalyptic number.

It is an amenable number.

31013525241 is a deficient number, since it is larger than the sum of its proper divisors (14932438119).

31013525241 is a wasteful number, since it uses less digits than its factorization.

31013525241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148649092 (or 1148649086 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 31013525241 in words is "thirty-one billion, thirteen million, five hundred twenty-five thousand, two hundred forty-one".

Divisors: 1 3 9 27 1148649083 3445947249 10337841747 31013525241