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13960361 = 28149681
BaseRepresentation
bin110101010000…
…010010101001
3222021021000102
4311100102221
512033212421
61215115145
7226442522
oct65202251
928237012
1013960361
117975698
124812ab5
132b7a38c
141bd5849
15135b60b
hexd504a9

13960361 has 4 divisors (see below), whose sum is σ = 14010324. Its totient is φ = 13910400.

The previous prime is 13960357. The next prime is 13960367. The reversal of 13960361 is 16306931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16306931 = 23708997.

It can be written as a sum of positive squares in 2 ways, for example, as 10118761 + 3841600 = 3181^2 + 1960^2 .

It is a cyclic number.

It is not a de Polignac number, because 13960361 - 22 = 13960357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13960367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24560 + ... + 25121.

It is an arithmetic number, because the mean of its divisors is an integer number (3502581).

Almost surely, 213960361 is an apocalyptic number.

It is an amenable number.

13960361 is a deficient number, since it is larger than the sum of its proper divisors (49963).

13960361 is an equidigital number, since it uses as much as digits as its factorization.

13960361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49962.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 13960361 is about 3736.3566478590. The cubic root of 13960361 is about 240.7865456164.

The spelling of 13960361 in words is "thirteen million, nine hundred sixty thousand, three hundred sixty-one".

Divisors: 1 281 49681 13960361