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13769385 = 357711847
BaseRepresentation
bin110100100001…
…101010101001
3221220120001020
4310201222221
512011110020
61211043053
7225015660
oct64415251
927816036
1013769385
117855163
124740489
132b11486
141b85dd7
15131ec40
hexd21aa9

13769385 has 32 divisors (see below), whose sum is σ = 25546752. Its totient is φ = 6202560.

The previous prime is 13769383. The next prime is 13769401. The reversal of 13769385 is 58396731.

It is not a de Polignac number, because 13769385 - 21 = 13769383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13769383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6532 + ... + 8378.

It is an arithmetic number, because the mean of its divisors is an integer number (798336).

Almost surely, 213769385 is an apocalyptic number.

13769385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13769385 is a deficient number, since it is larger than the sum of its proper divisors (11777367).

13769385 is a wasteful number, since it uses less digits than its factorization.

13769385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933.

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

The square root of 13769385 is about 3710.7121957921. The cubic root of 13769385 is about 239.6835238341.

The spelling of 13769385 in words is "thirteen million, seven hundred sixty-nine thousand, three hundred eighty-five".

Divisors: 1 3 5 7 15 21 35 71 105 213 355 497 1065 1491 1847 2485 5541 7455 9235 12929 27705 38787 64645 131137 193935 393411 655685 917959 1967055 2753877 4589795 13769385