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64535000789 = 7172316715359
BaseRepresentation
bin111100000110100101…
…011111011011010101
320011120112222201022102
4330012211133123111
52024131430011124
645351425011445
74443144312230
oct740645373325
9204515881272
1064535000789
11254073642a6
1210610783b85
136116169bcc
1431a2cb0417
151a2a956aae
hexf0695f6d5

64535000789 has 48 divisors (see below), whose sum is σ = 82087772160. Its totient is φ = 49627226880.

The previous prime is 64535000749. The next prime is 64535000797. The reversal of 64535000789 is 98700053546.

It is not a de Polignac number, because 64535000789 - 28 = 64535000533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64535000729) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4194092 + ... + 4209450.

It is an arithmetic number, because the mean of its divisors is an integer number (1710161920).

Almost surely, 264535000789 is an apocalyptic number.

It is an amenable number.

64535000789 is a deficient number, since it is larger than the sum of its proper divisors (17552771371).

64535000789 is a wasteful number, since it uses less digits than its factorization.

64535000789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15498 (or 15481 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 47.

The spelling of 64535000789 in words is "sixty-four billion, five hundred thirty-five million, seven hundred eighty-nine", and thus it is an aban number.

Divisors: 1 7 17 31 67 119 217 289 469 527 1139 2023 2077 3689 7973 8959 14539 15359 19363 35309 62713 107513 135541 247163 261103 476129 600253 1029053 1827721 3332903 4201771 4438751 7203371 8094193 17493901 31071257 31900643 56659351 122457307 137601281 223304501 297396317 542310931 963208967 2081774219 3796176517 9219285827 64535000789