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3132130212 = 223287003617
BaseRepresentation
bin1011101010110000…
…1000001110100100
322002021122200220200
42322230020032210
522403311131322
61234444230500
7140421444651
oct27254101644
98067580820
103132130212
111368007872
12734b3b430
133abb977b3
14219d9cc28
15134e938ac
hexbab083a4

3132130212 has 18 divisors (see below), whose sum is σ = 7917329238. Its totient is φ = 1044043392.

The previous prime is 3132130187. The next prime is 3132130213. The reversal of 3132130212 is 2120312313.

3132130212 is a `hidden beast` number, since 31 + 321 + 302 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2022840576 + 1109289636 = 44976^2 + 33306^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (3132130213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43501773 + ... + 43501844.

Almost surely, 23132130212 is an apocalyptic number.

It is an amenable number.

3132130212 is an abundant number, since it is smaller than the sum of its proper divisors (4785199026).

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

3132130212 is a wasteful number, since it uses less digits than its factorization.

3132130212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87003627 (or 87003622 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 3132130212 is about 55965.4376557532. The cubic root of 3132130212 is about 1463.1199640240.

Adding to 3132130212 its reverse (2120312313), we get a palindrome (5252442525).

The spelling of 3132130212 in words is "three billion, one hundred thirty-two million, one hundred thirty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 87003617 174007234 261010851 348014468 522021702 783032553 1044043404 1566065106 3132130212