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13195280 = 245723563
BaseRepresentation
bin110010010101…
…100000010000
3220211101112002
4302111200100
511334222110
61150453132
7220105130
oct62254020
926741462
1013195280
1174a289a
1245041a8
132970077
141a76ac0
151259aa5
hexc95810

13195280 has 40 divisors (see below), whose sum is σ = 35063232. Its totient is φ = 4523904.

The previous prime is 13195277. The next prime is 13195289. The reversal of 13195280 is 8259131.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (13195289) 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, 11222 + ... + 12341.

Almost surely, 213195280 is an apocalyptic number.

13195280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13195280 is an abundant number, since it is smaller than the sum of its proper divisors (21867952).

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

13195280 is a wasteful number, since it uses less digits than its factorization.

13195280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23583 (or 23577 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 13195280 is about 3632.5307982177. The cubic root of 13195280 is about 236.3049777336.

The spelling of 13195280 in words is "thirteen million, one hundred ninety-five thousand, two hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 23563 47126 94252 117815 164941 188504 235630 329882 377008 471260 659764 824705 942520 1319528 1649410 1885040 2639056 3298820 6597640 13195280