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13226970 = 235795581
BaseRepresentation
bin110010011101…
…001111011010
3220212222222210
4302131033122
511341230340
61151255550
7220266411
oct62351732
926788883
1013226970
117514689
12451a5b6
132981613
141a84478
151264180
hexc9d3da

13226970 has 32 divisors (see below), whose sum is σ = 32152320. Its totient is φ = 3481920.

The previous prime is 13226921. The next prime is 13227023. The reversal of 13226970 is 7962231.

13226970 = 5202 + 5212 + ... + 5642.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421 + ... + 5160.

It is an arithmetic number, because the mean of its divisors is an integer number (1004760).

Almost surely, 213226970 is an apocalyptic number.

13226970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13226970 is an abundant number, since it is smaller than the sum of its proper divisors (18925350).

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

13226970 is a wasteful number, since it uses less digits than its factorization.

13226970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5670.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 13226970 is about 3636.8901550638. The cubic root of 13226970 is about 236.4939977946.

It can be divided in two parts, 13226 and 970, that added together give a triangular number (14196 = T168).

The spelling of 13226970 in words is "thirteen million, two hundred twenty-six thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 79 158 237 395 474 790 1185 2370 5581 11162 16743 27905 33486 55810 83715 167430 440899 881798 1322697 2204495 2645394 4408990 6613485 13226970