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15134632452 = 2232420406457
BaseRepresentation
bin11100001100001100…
…00010101000000100
31110001202110222200200
432012012002220010
5221443431214302
610541443410500
71044023152602
oct160606025004
943052428620
1015134632452
116467118405
122b24683a30
1315726c7224
14a3806c872
155d8a5a81c
hex386182a04

15134632452 has 18 divisors (see below), whose sum is σ = 38256987678. Its totient is φ = 5044877472.

The previous prime is 15134632399. The next prime is 15134632493. The reversal of 15134632452 is 25423643151.

15134632452 is a `hidden beast` number, since 1 + 5 + 13 + 4 + 632 + 4 + 5 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13477816836 + 1656815616 = 116094^2 + 40704^2 .

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 (36), and also a Moran number because the ratio is a prime number: 420406457 = 15134632452 / (1 + 5 + 1 + 3 + 4 + 6 + 3 + 2 + 4 + 5 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210203193 + ... + 210203264.

Almost surely, 215134632452 is an apocalyptic number.

15134632452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15134632452 is an abundant number, since it is smaller than the sum of its proper divisors (23122355226).

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

15134632452 is a wasteful number, since it uses less digits than its factorization.

15134632452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420406467 (or 420406462 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The spelling of 15134632452 in words is "fifteen billion, one hundred thirty-four million, six hundred thirty-two thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 420406457 840812914 1261219371 1681625828 2522438742 3783658113 5044877484 7567316226 15134632452