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13870485 = 3253161163
BaseRepresentation
bin110100111010…
…010110010101
3222002200201200
4310322112111
512022323420
61213143113
7225616506
oct64722625
928080650
1013870485
117914112
12478aa99
132b484b5
141bb0bad
15133eb90
hexd3a595

13870485 has 48 divisors (see below), whose sum is σ = 25379328. Its totient is φ = 6998400.

The previous prime is 13870477. The next prime is 13870501. The reversal of 13870485 is 58407831.

It is not a de Polignac number, because 13870485 - 23 = 13870477 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 85014 + ... + 85176.

It is an arithmetic number, because the mean of its divisors is an integer number (528736).

Almost surely, 213870485 is an apocalyptic number.

13870485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13870485 is a deficient number, since it is larger than the sum of its proper divisors (11508843).

13870485 is a wasteful number, since it uses less digits than its factorization.

13870485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 13870485 is about 3724.3100032086. The cubic root of 13870485 is about 240.2687094512.

The spelling of 13870485 in words is "thirteen million, eight hundred seventy thousand, four hundred eighty-five".

Divisors: 1 3 5 9 15 31 45 61 93 155 163 183 279 305 465 489 549 815 915 1395 1467 1891 2445 2745 5053 5673 7335 9455 9943 15159 17019 25265 28365 29829 45477 49715 75795 85095 89487 149145 227385 308233 447435 924699 1541165 2774097 4623495 13870485