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64142924552 = 2371145409367
BaseRepresentation
bin111011101111001101…
…110101101100001000
320010120020020011211022
4323233031311230020
52022331042041202
645244501252012
74430343601640
oct735715655410
9203506204738
1064142924552
1125226010653
1210521404008
136082b71135
143166bad520
151a0630aea2
hexeef375b08

64142924552 has 16 divisors (see below), whose sum is σ = 137449124160. Its totient is φ = 27489824784.

The previous prime is 64142924551. The next prime is 64142924591. The reversal of 64142924552 is 25542924146.

It is a super-2 number, since 2×641429245522 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64142924551) 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, 572704628 + ... + 572704739.

It is an arithmetic number, because the mean of its divisors is an integer number (8590570260).

Almost surely, 264142924552 is an apocalyptic number.

It is an amenable number.

64142924552 is an abundant number, since it is smaller than the sum of its proper divisors (73306199608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64142924552 is a wasteful number, since it uses less digits than its factorization.

64142924552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145409380 (or 1145409376 counting only the distinct ones).

The product of its digits is 691200, while the sum is 44.

The spelling of 64142924552 in words is "sixty-four billion, one hundred forty-two million, nine hundred twenty-four thousand, five hundred fifty-two".

Divisors: 1 2 4 7 8 14 28 56 1145409367 2290818734 4581637468 8017865569 9163274936 16035731138 32071462276 64142924552