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130442452 = 2274658659
BaseRepresentation
bin1111100011001…
…10010011010100
3100002110011101221
413301212103110
5231343124302
620535500124
73142512460
oct761462324
9302404357
10130442452
11676a4388
1237827644
1321041caa
14134774a0
15b6b9937
hex7c664d4

130442452 has 12 divisors (see below), whose sum is σ = 260884960. Its totient is φ = 55903896.

The previous prime is 130442449. The next prime is 130442471. The reversal of 130442452 is 254244031.

It is a happy number.

130442452 is an admirable number.

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, 2329302 + ... + 2329357.

Almost surely, 2130442452 is an apocalyptic number.

It is an amenable number.

130442452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

130442452 is a wasteful number, since it uses less digits than its factorization.

130442452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4658670 (or 4658668 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 130442452 is about 11421.1405735154. The cubic root of 130442452 is about 507.1537619102.

Adding to 130442452 its reverse (254244031), we get a palindrome (384686483).

The spelling of 130442452 in words is "one hundred thirty million, four hundred forty-two thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 28 4658659 9317318 18634636 32610613 65221226 130442452