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13252992 = 27334513
BaseRepresentation
bin110010100011…
…100110000000
3220221022200120
4302203212000
511343043432
61152020240
7220435314
oct62434600
926838616
1013252992
117532195
124531680
13299040c
141a8db44
15126bc2c
hexca3980

13252992 has 32 divisors (see below), whose sum is σ = 35204280. Its totient is φ = 4417536.

The previous prime is 13252973. The next prime is 13252997. The reversal of 13252992 is 29925231.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-3 number, since 3×132529923 (a number of 22 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13252997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16873 + ... + 17640.

Almost surely, 213252992 is an apocalyptic number.

13252992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13252992 is an abundant number, since it is smaller than the sum of its proper divisors (21951288).

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

13252992 is an equidigital number, since it uses as much as digits as its factorization.

13252992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34530 (or 34518 counting only the distinct ones).

The product of its digits is 9720, while the sum is 33.

The square root of 13252992 is about 3640.4659042491. The cubic root of 13252992 is about 236.6489845504.

The spelling of 13252992 in words is "thirteen million, two hundred fifty-two thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 384 34513 69026 103539 138052 207078 276104 414156 552208 828312 1104416 1656624 2208832 3313248 4417664 6626496 13252992