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13044690 = 2325144941
BaseRepresentation
bin110001110000…
…101111010010
3220112201221200
4301300233102
511314412230
61143332030
7215610111
oct61605722
926481850
1013044690
1173aa73a
124451016
132919669
141a37c78
15122a160
hexc70bd2

13044690 has 24 divisors (see below), whose sum is σ = 33916428. Its totient is φ = 3478560.

The previous prime is 13044679. The next prime is 13044701. The reversal of 13044690 is 9644031.

13044690 is a `hidden beast` number, since 130 + 446 + 90 = 666.

13044690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13044679) and next prime (13044701).

It can be written as a sum of positive squares in 2 ways, for example, as 11923209 + 1121481 = 3453^2 + 1059^2 .

It is a super-2 number, since 2×130446902 = 340327874392200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72381 + ... + 72560.

Almost surely, 213044690 is an apocalyptic number.

13044690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13044690 is an abundant number, since it is smaller than the sum of its proper divisors (20871738).

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

13044690 is a wasteful number, since it uses less digits than its factorization.

13044690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144954 (or 144951 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 13044690 is about 3611.7433463634. The cubic root of 13044690 is about 235.4025994501.

The spelling of 13044690 in words is "thirteen million, forty-four thousand, six hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 144941 289882 434823 724705 869646 1304469 1449410 2174115 2608938 4348230 6522345 13044690