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64331052004245 = 3513329902830791
BaseRepresentation
bin11101010000010001111011…
…00000001011001110010101
322102202222200121211111112210
432220020331200023032111
531412444443303113440
6344453135521504033
716356523303516635
oct1650107540131625
9272688617744483
1064331052004245
11195527118273a4
12726b9571a2019
1329b85137b5520
1411c58d4c2a6c5
157685e939aa80
hex3a823d80b395

64331052004245 has 16 divisors (see below), whose sum is σ = 110847351146112. Its totient is φ = 31670671755840.

The previous prime is 64331052004243. The next prime is 64331052004259. The reversal of 64331052004245 is 54240025013346.

It is not a de Polignac number, because 64331052004245 - 21 = 64331052004243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64331052004243) 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, 164951415201 + ... + 164951415590.

It is an arithmetic number, because the mean of its divisors is an integer number (6927959446632).

Almost surely, 264331052004245 is an apocalyptic number.

64331052004245 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64331052004245 is a deficient number, since it is larger than the sum of its proper divisors (46516299141867).

64331052004245 is a wasteful number, since it uses less digits than its factorization.

64331052004245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329902830812.

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 64331052004245 in words is "sixty-four trillion, three hundred thirty-one billion, fifty-two million, four thousand, two hundred forty-five".

Divisors: 1 3 5 13 15 39 65 195 329902830791 989708492373 1649514153955 4288736800283 4948542461865 12866210400849 21443684001415 64331052004245