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13061472 = 253136057
BaseRepresentation
bin110001110100…
…110101100000
3220120120222020
4301310311200
511320431342
61143541440
7216010044
oct61646540
926516866
1013061472
117411306
12445a880
1329241a8
141a40024
1512300ec
hexc74d60

13061472 has 24 divisors (see below), whose sum is σ = 34286616. Its totient is φ = 4353792.

The previous prime is 13061471. The next prime is 13061527. The reversal of 13061472 is 27416031.

Added to its reverse (27416031) it gives a triangular number (40477503 = T8997).

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13061471) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 67933 + ... + 68124.

It is an arithmetic number, because the mean of its divisors is an integer number (1428609).

Almost surely, 213061472 is an apocalyptic number.

13061472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13061472 is an abundant number, since it is smaller than the sum of its proper divisors (21225144).

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

13061472 is a wasteful number, since it uses less digits than its factorization.

13061472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136070 (or 136062 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 13061472 is about 3614.0658544083. The cubic root of 13061472 is about 235.5035047103.

Adding to 13061472 its reverse (27416031), we get a triangular number (40477503 = T8997).

The spelling of 13061472 in words is "thirteen million, sixty-one thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 136057 272114 408171 544228 816342 1088456 1632684 2176912 3265368 4353824 6530736 13061472