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13271490 = 2325167883
BaseRepresentation
bin110010101000…
…000111000010
3220222021001200
4302220013002
511344141430
61152242030
7220543251
oct62500702
926867050
1013271490
117545081
124540316
13299896b
141a96798
151272460
hexca81c2

13271490 has 48 divisors (see below), whose sum is σ = 34751808. Its totient is φ = 3513888.

The previous prime is 13271471. The next prime is 13271491. The reversal of 13271490 is 9417231.

It is a super-2 number, since 2×132714902 = 352264893640200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13271491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14589 + ... + 15471.

It is an arithmetic number, because the mean of its divisors is an integer number (723996).

Almost surely, 213271490 is an apocalyptic number.

13271490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13271490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17375904).

13271490 is an abundant number, since it is smaller than the sum of its proper divisors (21480318).

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

13271490 is a wasteful number, since it uses less digits than its factorization.

13271490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063 (or 1060 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 13271490 is about 3643.0056272260. The cubic root of 13271490 is about 236.7590351168.

The spelling of 13271490 in words is "thirteen million, two hundred seventy-one thousand, four hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 167 334 501 835 883 1002 1503 1670 1766 2505 2649 3006 4415 5010 5298 7515 7947 8830 13245 15030 15894 26490 39735 79470 147461 294922 442383 737305 884766 1327149 1474610 2211915 2654298 4423830 6635745 13271490