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13711490 = 2513293637
BaseRepresentation
bin110100010011…
…100010000010
3221210121121222
4310103202002
512002231430
61205515042
7224355122
oct64234202
927717558
1013711490
117815711
124712a82
132ac1010
141b6cc82
15130c9e5
hexd13882

13711490 has 32 divisors (see below), whose sum is σ = 27503280. Its totient is φ = 4886784.

The previous prime is 13711447. The next prime is 13711499. The reversal of 13711490 is 9411731.

It can be written as a sum of positive squares in 8 ways, for example, as 657721 + 13053769 = 811^2 + 3613^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13711499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1952 + ... + 5588.

Almost surely, 213711490 is an apocalyptic number.

13711490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13711490 is an abundant number, since it is smaller than the sum of its proper divisors (13791790).

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

13711490 is a wasteful number, since it uses less digits than its factorization.

13711490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3686.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 13711490 is about 3702.9029152815. The cubic root of 13711490 is about 239.3471260551.

The spelling of 13711490 in words is "thirteen million, seven hundred eleven thousand, four hundred ninety".

Divisors: 1 2 5 10 13 26 29 58 65 130 145 290 377 754 1885 3637 3770 7274 18185 36370 47281 94562 105473 210946 236405 472810 527365 1054730 1371149 2742298 6855745 13711490