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13763985 = 354312129
BaseRepresentation
bin110100100000…
…010110010001
3221220021122020
4310200112101
512010421420
61211002053
7224664144
oct64402621
927807566
1013763985
1178510a4
124739329
132b0bb91
141b8405b
15131d340
hexd20591

13763985 has 16 divisors (see below), whose sum is σ = 22083840. Its totient is φ = 7320320.

The previous prime is 13763983. The next prime is 13764001. The reversal of 13763985 is 58936731.

It is not a de Polignac number, because 13763985 - 21 = 13763983 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13763983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5401 + ... + 7529.

It is an arithmetic number, because the mean of its divisors is an integer number (1380240).

Almost surely, 213763985 is an apocalyptic number.

13763985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13763985 is a deficient number, since it is larger than the sum of its proper divisors (8319855).

13763985 is a wasteful number, since it uses less digits than its factorization.

13763985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568.

The product of its digits is 136080, while the sum is 42.

The square root of 13763985 is about 3709.9845013153. The cubic root of 13763985 is about 239.6521871583.

The spelling of 13763985 in words is "thirteen million, seven hundred sixty-three thousand, nine hundred eighty-five".

Divisors: 1 3 5 15 431 1293 2129 2155 6387 6465 10645 31935 917599 2752797 4587995 13763985