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14938780013 = 611013177649
BaseRepresentation
bin11011110100110101…
…11011000101101101
31102120002221122122122
431322122323011231
5221043311430023
610510205522325
71036124351333
oct157232730555
942502848578
1014938780013
116376608593
122a8ab733a5
131540c62a01
14a1a049b53
155c67702c8
hex37a6bb16d

14938780013 has 16 divisors (see below), whose sum is σ = 15384394800. Its totient is φ = 14500608000.

The previous prime is 14938779949. The next prime is 14938780019. The reversal of 14938780013 is 31008783941.

It can be written as a sum of positive squares in 8 ways, for example, as 4345841929 + 10592938084 = 65923^2 + 102922^2 .

It is a cyclic number.

It is not a de Polignac number, because 14938780013 - 26 = 14938779949 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 (14938780019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1949213 + ... + 1956861.

It is an arithmetic number, because the mean of its divisors is an integer number (961524675).

Almost surely, 214938780013 is an apocalyptic number.

It is an amenable number.

14938780013 is a deficient number, since it is larger than the sum of its proper divisors (445614787).

14938780013 is a wasteful number, since it uses less digits than its factorization.

14938780013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8128.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 14938780013 in words is "fourteen billion, nine hundred thirty-eight million, seven hundred eighty thousand, thirteen".

Divisors: 1 61 101 317 6161 7649 19337 32017 466589 772549 1953037 2424733 47125489 147908713 244898033 14938780013