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13013878360568 = 23173131093279707
BaseRepresentation
bin1011110101100000011110…
…0110001100100111111000
31201002010002120002021220212
42331120013212030213320
53201204410330014233
643402254310010252
72512136015620121
oct275300746144770
951063076067825
1013013878360568
114168178077478
121562215646988
137352850180a7
1432dc372b7048
151787c2c8da48
hexbd60798c9f8

13013878360568 has 64 divisors (see below), whose sum is σ = 25942726798560. Its totient is φ = 6099004993536.

The previous prime is 13013878360541. The next prime is 13013878360577. The reversal of 13013878360568 is 86506387831031.

It is a happy number.

It is a super-2 number, since 2×130138783605682 (a number of 27 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 (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46386971 + ... + 46666677.

Almost surely, 213013878360568 is an apocalyptic number.

It is an amenable number.

13013878360568 is a deficient number, since it is larger than the sum of its proper divisors (12928848437992).

13013878360568 is a wasteful number, since it uses less digits than its factorization.

13013878360568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281136 (or 281132 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 59.

The spelling of 13013878360568 in words is "thirteen trillion, thirteen billion, eight hundred seventy-eight million, three hundred sixty thousand, five hundred sixty-eight".

Divisors: 1 2 4 8 17 34 68 136 313 626 1093 1252 2186 2504 4372 5321 8744 10642 18581 21284 37162 42568 74324 148648 279707 342109 559414 684218 1118828 1368436 2237656 2736872 4755019 5815853 9510038 11631706 19020076 23263412 38040152 46526824 87548291 175096582 305719751 350193164 611439502 700386328 1222879004 1488320947 2445758008 2976641894 5197235767 5953283788 10394471534 11906567576 20788943068 41577886136 95690282063 191380564126 382761128252 765522256504 1626734795071 3253469590142 6506939180284 13013878360568