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13959361 = 135771861
BaseRepresentation
bin110101010000…
…000011000001
3222021012122101
4311100003001
512033144421
61215110401
7226436563
oct65200301
928235571
1013959361
117974969
124812401
132b79aa0
141bd5333
15135b191
hexd500c1

13959361 has 8 divisors (see below), whose sum is σ = 15067304. Its totient is φ = 12856320.

The previous prime is 13959359. The next prime is 13959389. The reversal of 13959361 is 16395931.

It can be written as a sum of positive squares in 4 ways, for example, as 409600 + 13549761 = 640^2 + 3681^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13959361 - 21 = 13959359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13959361.

It is not an unprimeable number, because it can be changed into a prime (13959061) 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, 6571 + ... + 8431.

It is an arithmetic number, because the mean of its divisors is an integer number (1883413).

Almost surely, 213959361 is an apocalyptic number.

It is an amenable number.

13959361 is a deficient number, since it is larger than the sum of its proper divisors (1107943).

13959361 is a wasteful number, since it uses less digits than its factorization.

13959361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2451.

The product of its digits is 21870, while the sum is 37.

The square root of 13959361 is about 3736.2228252608. Note that the first 3 decimals coincide. The cubic root of 13959361 is about 240.7807961878.

The spelling of 13959361 in words is "thirteen million, nine hundred fifty-nine thousand, three hundred sixty-one".

Divisors: 1 13 577 1861 7501 24193 1073797 13959361