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468686864 = 242973101137
BaseRepresentation
bin11011111011111…
…001100000010000
31012122220202111202
4123323321200100
51424440434424
6114301330332
714420526002
oct3373714020
91178822452
10468686864
1122061a418
12110b669a8
1376140509
1446364372
152b2302ae
hex1bef9810

468686864 has 80 divisors (see below), whose sum is σ = 968710320. Its totient is φ = 219340800.

The previous prime is 468686863. The next prime is 468686873.

It is a happy number.

468686864 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 65480464 + 403206400 = 8092^2 + 20080^2 .

It is not an unprimeable number, because it can be changed into a prime (468686863) 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, 3421004 + ... + 3421140.

It is an arithmetic number, because the mean of its divisors is an integer number (12108879).

Almost surely, 2468686864 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 468686864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (484355160).

468686864 is an abundant number, since it is smaller than the sum of its proper divisors (500023456).

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

468686864 is a wasteful number, since it uses less digits than its factorization.

468686864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 342 counting only the distinct ones).

The product of its digits is 10616832, while the sum is 56.

The square root of 468686864 is about 21649.1769820471. The cubic root of 468686864 is about 776.7732487925.

The spelling of 468686864 in words is "four hundred sixty-eight million, six hundred eighty-six thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 16 29 58 73 101 116 137 146 202 232 274 292 404 464 548 584 808 1096 1168 1616 2117 2192 2929 3973 4234 5858 7373 7946 8468 10001 11716 13837 14746 15892 16936 20002 23432 27674 29492 31784 33872 40004 46864 55348 58984 63568 80008 110696 117968 160016 213817 221392 290029 401273 427634 580058 802546 855268 1010101 1160116 1605092 1710536 2020202 2320232 3210184 3421072 4040404 4640464 6420368 8080808 16161616 29292929 58585858 117171716 234343432 468686864