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64148181030 = 23251009370619
BaseRepresentation
bin111011101111100001…
…111001000000100110
320010120121010020100200
4323233201321000212
52022333413243110
645245210051330
74430436353643
oct735741710046
9203517106320
1064148181030
1125228a8094a
1210523119b46
136083c9188b
14316777adca
151a069e86c0
hexeef879026

64148181030 has 48 divisors (see below), whose sum is σ = 166804157520. Its totient is φ = 17104244544.

The previous prime is 64148181029. The next prime is 64148181043. The reversal of 64148181030 is 3018184146.

It is a happy number.

64148181030 is a `hidden beast` number, since 641 + 4 + 8 + 1 + 8 + 1 + 0 + 3 + 0 = 666.

It is a super-2 number, since 2×641481810302 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 873061 + ... + 943679.

It is an arithmetic number, because the mean of its divisors is an integer number (3475086615).

Almost surely, 264148181030 is an apocalyptic number.

64148181030 is an abundant number, since it is smaller than the sum of its proper divisors (102655976490).

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

64148181030 is a wasteful number, since it uses less digits than its factorization.

64148181030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80725 (or 80722 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The spelling of 64148181030 in words is "sixty-four billion, one hundred forty-eight million, one hundred eighty-one thousand, thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 10093 20186 30279 50465 60558 70619 90837 100930 141238 151395 181674 211857 302790 353095 423714 454185 635571 706190 908370 1059285 1271142 2118570 3177855 6355710 712757567 1425515134 2138272701 3563787835 4276545402 6414818103 7127575670 10691363505 12829636206 21382727010 32074090515 64148181030