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13011472 = 24813217
BaseRepresentation
bin110001101000…
…101000010000
3220111001101101
4301220220100
511312331342
61142514144
7215411215
oct61505020
926431341
1013011472
117387791
124435954
1329074c6
141a29b0c
1512203b7
hexc68a10

13011472 has 10 divisors (see below), whose sum is σ = 25209758. Its totient is φ = 6505728.

The previous prime is 13011469. The next prime is 13011487. The reversal of 13011472 is 27411031.

It can be written as a sum of positive squares in only one way, i.e., 11532816 + 1478656 = 3396^2 + 1216^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406593 + ... + 406624.

Almost surely, 213011472 is an apocalyptic number.

It is an amenable number.

13011472 is a deficient number, since it is larger than the sum of its proper divisors (12198286).

13011472 is an equidigital number, since it uses as much as digits as its factorization.

13011472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813225 (or 813219 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 13011472 is about 3607.1418048089. The cubic root of 13011472 is about 235.2026138510.

The spelling of 13011472 in words is "thirteen million, eleven thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 813217 1626434 3252868 6505736 13011472