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13657995 = 3251337631
BaseRepresentation
bin110100000110…
…011110001011
3221200220020200
4310012132023
511444023440
61204423243
7224043141
oct64063613
927626220
1013657995
1177894aa
1246a7b23
132aa2870
141b57591
1512ebc30
hexd0678b

13657995 has 48 divisors (see below), whose sum is σ = 26225472. Its totient is φ = 6531840.

The previous prime is 13657993. The next prime is 13657999. The reversal of 13657995 is 59975631.

13657995 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13657995 - 21 = 13657993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 13657995.

It is not an unprimeable number, because it can be changed into a prime (13657993) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21330 + ... + 21960.

It is an arithmetic number, because the mean of its divisors is an integer number (546364).

Almost surely, 213657995 is an apocalyptic number.

13657995 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13657995 is a deficient number, since it is larger than the sum of its proper divisors (12567477).

13657995 is a wasteful number, since it uses less digits than its factorization.

13657995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692 (or 689 counting only the distinct ones).

The product of its digits is 255150, while the sum is 45.

The square root of 13657995 is about 3695.6724692537. The cubic root of 13657995 is about 239.0354516367.

The spelling of 13657995 in words is "thirteen million, six hundred fifty-seven thousand, nine hundred ninety-five".

Divisors: 1 3 5 9 13 15 37 39 45 65 111 117 185 195 333 481 555 585 631 1443 1665 1893 2405 3155 4329 5679 7215 8203 9465 21645 23347 24609 28395 41015 70041 73827 116735 123045 210123 303511 350205 369135 910533 1050615 1517555 2731599 4552665 13657995