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13067748 = 22322912517
BaseRepresentation
bin110001110110…
…010111100100
3220120220120200
4301312113210
511321131443
61144030500
7216034251
oct61662744
926526520
1013067748
117415aa1
124462430
132926cc5
141a42428
151231dd3
hexc765e4

13067748 has 36 divisors (see below), whose sum is σ = 34174140. Its totient is φ = 4205376.

The previous prime is 13067731. The next prime is 13067753. The reversal of 13067748 is 84776031.

It can be written as a sum of positive squares in 2 ways, for example, as 9998244 + 3069504 = 3162^2 + 1752^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5215 + ... + 7302.

Almost surely, 213067748 is an apocalyptic number.

13067748 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13067748 is an abundant number, since it is smaller than the sum of its proper divisors (21106392).

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

13067748 is a wasteful number, since it uses less digits than its factorization.

13067748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12556 (or 12551 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 13067748 is about 3614.9340242942. The cubic root of 13067748 is about 235.5412182577.

The spelling of 13067748 in words is "thirteen million, sixty-seven thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 29 36 58 87 116 174 261 348 522 1044 12517 25034 37551 50068 75102 112653 150204 225306 362993 450612 725986 1088979 1451972 2177958 3266937 4355916 6533874 13067748