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285379696 = 24719592273
BaseRepresentation
bin10001000000101…
…000110001110000
3201212222210100101
4101000220301300
51041024122241
644152402144
710033454530
oct2100506160
9655883311
10285379696
111370a8a98
127b6a6354
134717c234
1429c894c0
151a0c1e31
hex11028c70

285379696 has 80 divisors (see below), whose sum is σ = 676742400. Its totient is φ = 113854464.

The previous prime is 285379693. The next prime is 285379709. The reversal of 285379696 is 696973582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285379693) 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, 124416 + ... + 126688.

It is an arithmetic number, because the mean of its divisors is an integer number (8459280).

Almost surely, 2285379696 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 285379696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338371200).

285379696 is an abundant number, since it is smaller than the sum of its proper divisors (391362704).

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

285379696 is a wasteful number, since it uses less digits than its factorization.

285379696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366 (or 2360 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 55.

The square root of 285379696 is about 16893.1848980587. The cubic root of 285379696 is about 658.3765548222.

The spelling of 285379696 in words is "two hundred eighty-five million, three hundred seventy-nine thousand, six hundred ninety-six".

Divisors: 1 2 4 7 8 14 16 19 28 38 56 59 76 112 118 133 152 236 266 304 413 472 532 826 944 1064 1121 1652 2128 2242 2273 3304 4484 4546 6608 7847 8968 9092 15694 15911 17936 18184 31388 31822 36368 43187 62776 63644 86374 125552 127288 134107 172748 254576 268214 302309 345496 536428 604618 690992 938749 1072856 1209236 1877498 2145712 2418472 2548033 3754996 4836944 5096066 7509992 10192132 15019984 17836231 20384264 35672462 40768528 71344924 142689848 285379696