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15530052 = 2234330097
BaseRepresentation
bin111011001111…
…100001000100
31002020000020010
4323033201010
512433430202
61312510220
7246001056
oct73174104
932200203
1015530052
118847a5a
12524b370
1332a99a5
1420c38d6
15156b76c
hexecf844

15530052 has 24 divisors (see below), whose sum is σ = 37080736. Its totient is φ = 5056128.

The previous prime is 15530033. The next prime is 15530089. The reversal of 15530052 is 25003551.

15530052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14533 + ... + 15564.

Almost surely, 215530052 is an apocalyptic number.

15530052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15530052 is an abundant number, since it is smaller than the sum of its proper divisors (21550684).

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

15530052 is a wasteful number, since it uses less digits than its factorization.

15530052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30147 (or 30145 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 15530052 is about 3940.8186966670. The cubic root of 15530052 is about 249.4925814692.

The spelling of 15530052 in words is "fifteen million, five hundred thirty thousand, fifty-two".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 30097 60194 90291 120388 180582 361164 1294171 2588342 3882513 5176684 7765026 15530052