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64132055 = 5131079221
BaseRepresentation
bin1111010010100…
…1001111010111
311110200020122022
43310221033113
5112404211210
610210323355
71406053631
oct364511727
9143606568
1064132055
11332233a9
121958955b
1310395980
148735a51
15596c155
hex3d293d7

64132055 has 16 divisors (see below), whose sum is σ = 83661984. Its totient is φ = 46911360.

The previous prime is 64132051. The next prime is 64132069. The reversal of 64132055 is 55023146.

It is not a de Polignac number, because 64132055 - 22 = 64132051 is a prime.

It is a super-2 number, since 2×641320552 = 8225840957046050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64132051) 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, 2345 + ... + 11565.

It is an arithmetic number, because the mean of its divisors is an integer number (5228874).

Almost surely, 264132055 is an apocalyptic number.

64132055 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

64132055 is a deficient number, since it is larger than the sum of its proper divisors (19529929).

64132055 is a wasteful number, since it uses less digits than its factorization.

64132055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9346.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 64132055 is about 8008.2491844348. The cubic root of 64132055 is about 400.2749255799.

It can be divided in two parts, 641 and 32055, that multiplied together give a triangular number (20547255 = T6410).

The spelling of 64132055 in words is "sixty-four million, one hundred thirty-two thousand, fifty-five".

Divisors: 1 5 13 65 107 535 1391 6955 9221 46105 119873 599365 986647 4933235 12826411 64132055