Search a number
-
+
3131013044 = 22782753261
BaseRepresentation
bin1011101010011111…
…0111011110110100
322002012112221110002
42322213313132310
522403014404134
61234404250432
7140406112625
oct27247673664
98065487402
103131013044
111367414495
127346a0a18
133ab896153
14219b8ba4c
15134d2287e
hexba9f77b4

3131013044 has 6 divisors (see below), whose sum is σ = 5479272834. Its totient is φ = 1565506520.

The previous prime is 3131013013. The next prime is 3131013091. The reversal of 3131013044 is 4403101313.

It can be written as a sum of positive squares in only one way, i.e., 2681996944 + 449016100 = 51788^2 + 21190^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391376627 + ... + 391376634.

It is an arithmetic number, because the mean of its divisors is an integer number (913212139).

Almost surely, 23131013044 is an apocalyptic number.

It is an amenable number.

3131013044 is a deficient number, since it is larger than the sum of its proper divisors (2348259790).

3131013044 is a wasteful number, since it uses less digits than its factorization.

3131013044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782753265 (or 782753263 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 3131013044 is about 55955.4558912712. The cubic root of 3131013044 is about 1462.9459881600.

Adding to 3131013044 its reverse (4403101313), we get a palindrome (7534114357).

The spelling of 3131013044 in words is "three billion, one hundred thirty-one million, thirteen thousand, forty-four".

Divisors: 1 2 4 782753261 1565506522 3131013044