Search a number
-
+
3131304132 = 2231123722001
BaseRepresentation
bin1011101010100011…
…1110100011000100
322002020002201202010
42322220332203010
522403103213012
61234414414220
7140411434365
oct27250764304
98066081663
103131304132
1113675a3160
12734801370
133ab9687a8
14219c25b6c
15134d7dc3c
hexbaa3e8c4

3131304132 has 24 divisors (see below), whose sum is σ = 7970592672. Its totient is φ = 948880000.

The previous prime is 3131304131. The next prime is 3131304199. The reversal of 3131304132 is 2314031313.

3131304132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3131304099 and 3131304108.

It is not an unprimeable number, because it can be changed into a prime (3131304131) 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, 11860869 + ... + 11861132.

It is an arithmetic number, because the mean of its divisors is an integer number (332108028).

Almost surely, 23131304132 is an apocalyptic number.

It is an amenable number.

3131304132 is an abundant number, since it is smaller than the sum of its proper divisors (4839288540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3131304132 is a wasteful number, since it uses less digits than its factorization.

3131304132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23722019 (or 23722017 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 3131304132 is about 55958.0568997888. The cubic root of 3131304132 is about 1462.9913230958.

Adding to 3131304132 its reverse (2314031313), we get a palindrome (5445335445).

The spelling of 3131304132 in words is "three billion, one hundred thirty-one million, three hundred four thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 23722001 47444002 71166003 94888004 142332006 260942011 284664012 521884022 782826033 1043768044 1565652066 3131304132