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14621940959 = 17981686821
BaseRepresentation
bin11011001111000100…
…10001110011011111
31101202000202120011212
431213202101303133
5214421204102314
610414530535035
71025226306323
oct154742216337
941660676155
1014621940959
11622378272a
122a00a3747b
1314c041a492
149c9d31983
155a8a36e3e
hex367891cdf

14621940959 has 4 divisors (see below), whose sum is σ = 14703627960. Its totient is φ = 14540253960.

The previous prime is 14621940869. The next prime is 14621941007. The reversal of 14621940959 is 95904912641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95904912641 = 285493359309.

It is a cyclic number.

It is not a de Polignac number, because 14621940959 - 220 = 14620892383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14621930959) 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, 40843232 + ... + 40843589.

It is an arithmetic number, because the mean of its divisors is an integer number (3675906990).

Almost surely, 214621940959 is an apocalyptic number.

14621940959 is a deficient number, since it is larger than the sum of its proper divisors (81687001).

14621940959 is an equidigital number, since it uses as much as digits as its factorization.

14621940959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81687000.

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 14621940959 in words is "fourteen billion, six hundred twenty-one million, nine hundred forty thousand, nine hundred fifty-nine".

Divisors: 1 179 81686821 14621940959