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3131201044 = 221734524857
BaseRepresentation
bin1011101010100010…
…0101011000010100
322002012220111100001
42322220211120110
522403041413134
61234412301044
7140410525006
oct27250453024
98065814301
103131201044
111367532764
12734771784
133ab9308aa
14219bda376
15134d5d414
hexbaa25614

3131201044 has 12 divisors (see below), whose sum is σ = 5511277044. Its totient is φ = 1556550464.

The previous prime is 3131201039. The next prime is 3131201063. The reversal of 3131201044 is 4401021313.

It can be written as a sum of positive squares in 2 ways, for example, as 2579420944 + 551780100 = 50788^2 + 23490^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2261737 + ... + 2263120.

It is an arithmetic number, because the mean of its divisors is an integer number (459273087).

Almost surely, 23131201044 is an apocalyptic number.

It is an amenable number.

3131201044 is a deficient number, since it is larger than the sum of its proper divisors (2380076000).

3131201044 is a wasteful number, since it uses less digits than its factorization.

3131201044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4525034 (or 4525032 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3131201044 is about 55957.1357737331. The cubic root of 3131201044 is about 1462.9752681766.

Adding to 3131201044 its reverse (4401021313), we get a palindrome (7532222357).

The spelling of 3131201044 in words is "three billion, one hundred thirty-one million, two hundred one thousand, forty-four".

Divisors: 1 2 4 173 346 692 4524857 9049714 18099428 782800261 1565600522 3131201044