Search a number
-
+
31095044 = 227773761
BaseRepresentation
bin111011010011…
…1100100000100
32011111210101022
41312213210010
530430020134
63030250312
7525206051
oct166474404
964453338
1031095044
1116609192
12a4b6998
136599546
1441b6028
152ae352e
hex1da7904

31095044 has 6 divisors (see below), whose sum is σ = 54416334. Its totient is φ = 15547520.

The previous prime is 31095041. The next prime is 31095067. The reversal of 31095044 is 44059013.

It can be written as a sum of positive squares in only one way, i.e., 28729600 + 2365444 = 5360^2 + 1538^2 .

It is a super-2 number, since 2×310950442 = 1933803522723872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31095041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3886877 + ... + 3886884.

It is an arithmetic number, because the mean of its divisors is an integer number (9069389).

Almost surely, 231095044 is an apocalyptic number.

It is an amenable number.

31095044 is a deficient number, since it is larger than the sum of its proper divisors (23321290).

31095044 is a wasteful number, since it uses less digits than its factorization.

31095044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7773765 (or 7773763 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 31095044 is about 5576.2930339070. The cubic root of 31095044 is about 314.4587800455.

The spelling of 31095044 in words is "thirty-one million, ninety-five thousand, forty-four".

Divisors: 1 2 4 7773761 15547522 31095044