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13270272 = 28337467
BaseRepresentation
bin110010100111…
…110100000000
3220222012101120
4302213310000
511344122042
61152232240
7220536561
oct62476400
926865346
1013270272
117544174
12453b680
132998242
141a96168
151271dec
hexca7d00

13270272 has 72 divisors (see below), whose sum is σ = 36350496. Its totient is φ = 4294656.

The previous prime is 13270267. The next prime is 13270277. The reversal of 13270272 is 27207231.

Added to its reverse (27207231) it gives a triangular number (40477503 = T8997).

It is an interprime number because it is at equal distance from previous prime (13270267) and next prime (13270277).

It is a super-2 number, since 2×132702722 = 352200237907968, which contains 22 as substring.

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 (13270277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28183 + ... + 28649.

It is an arithmetic number, because the mean of its divisors is an integer number (504868).

Almost surely, 213270272 is an apocalyptic number.

13270272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13270272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18175248).

13270272 is an abundant number, since it is smaller than the sum of its proper divisors (23080224).

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

13270272 is an equidigital number, since it uses as much as digits as its factorization.

13270272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 13270272 is about 3642.8384537336. The cubic root of 13270272 is about 236.7517919882.

Adding to 13270272 its reverse (27207231), we get a triangular number (40477503 = T8997).

The spelling of 13270272 in words is "thirteen million, two hundred seventy thousand, two hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 37 48 64 74 96 111 128 148 192 222 256 296 384 444 467 592 768 888 934 1184 1401 1776 1868 2368 2802 3552 3736 4736 5604 7104 7472 9472 11208 14208 14944 17279 22416 28416 29888 34558 44832 51837 59776 69116 89664 103674 119552 138232 179328 207348 276464 358656 414696 552928 829392 1105856 1658784 2211712 3317568 4423424 6635136 13270272