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14640395007 = 372412892787
BaseRepresentation
bin11011010001010001…
…01011001011111111
31101210022111010101010
431220220223023333
5214440420120012
610420430250303
71025542206240
oct155050531377
941708433333
1014640395007
116233137507
122a07056993
1314c41ac034
149cc576cc7
155aa47ec3c
hex368a2b2ff

14640395007 has 16 divisors (see below), whose sum is σ = 22401750272. Its totient is φ = 8331223680.

The previous prime is 14640394997. The next prime is 14640395101. The reversal of 14640395007 is 70059304641.

It is not a de Polignac number, because 14640395007 - 24 = 14640394991 is a prime.

It is the 120998-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14640315007) by changing a digit.

It is a nontrivial repunit in base 120997.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1441333 + ... + 1451454.

It is an arithmetic number, because the mean of its divisors is an integer number (1400109392).

Almost surely, 214640395007 is an apocalyptic number.

14640395007 is a deficient number, since it is larger than the sum of its proper divisors (7761355265).

14640395007 is a wasteful number, since it uses less digits than its factorization.

14640395007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2893038.

The product of its (nonzero) digits is 90720, while the sum is 39.

Adding to 14640395007 its reverse (70059304641), we get a palindrome (84699699648).

The spelling of 14640395007 in words is "fourteen billion, six hundred forty million, three hundred ninety-five thousand, seven".

Divisors: 1 3 7 21 241 723 1687 5061 2892787 8678361 20249509 60748527 697161667 2091485001 4880131669 14640395007