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426761868 = 2231359199233
BaseRepresentation
bin11001011011111…
…101111010001100
31002202000202020010
4121123331322030
51333222334433
6110202553220
713401262461
oct3133757214
91082022203
10426761868
111a9994565
12bab08810
136a551720
144096d668
15276ece63
hex196fde8c

426761868 has 96 divisors (see below), whose sum is σ = 1100736000. Its totient is φ = 127885824.

The previous prime is 426761861. The next prime is 426761887. The reversal of 426761868 is 868167624.

It is not an unprimeable number, because it can be changed into a prime (426761861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1831480 + ... + 1831712.

It is an arithmetic number, because the mean of its divisors is an integer number (11466000).

Almost surely, 2426761868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426761868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (550368000).

426761868 is an abundant number, since it is smaller than the sum of its proper divisors (673974132).

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

426761868 is a wasteful number, since it uses less digits than its factorization.

426761868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 509 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 426761868 is about 20658.2155086058. The cubic root of 426761868 is about 752.8848113688.

It can be divided in two parts, 42676 and 1868, that added together give a palindrome (44544).

The spelling of 426761868 in words is "four hundred twenty-six million, seven hundred sixty-one thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 59 78 118 156 177 199 233 236 354 398 466 597 699 708 767 796 932 1194 1398 1534 2301 2388 2587 2796 3029 3068 4602 5174 6058 7761 9087 9204 10348 11741 12116 13747 15522 18174 23482 27494 31044 35223 36348 41241 46367 46964 54988 70446 82482 92734 139101 140892 152633 164964 178711 185468 278202 305266 357422 457899 536133 556404 602771 610532 714844 915798 1072266 1205542 1808313 1831596 2144532 2411084 2735653 3616626 5471306 7233252 8206959 10942612 16413918 32827836 35563489 71126978 106690467 142253956 213380934 426761868