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2287448664 = 233130772923
BaseRepresentation
bin1000100001010111…
…1011001001011000
312220102020102122220
42020111323021120
514141041324124
61014551544040
7110453664354
oct21025731130
95812212586
102287448664
11a74229046
1253a08b020
132a5b9c227
14179b22464
15d5c42879
hex8857b258

2287448664 has 32 divisors (see below), whose sum is σ = 5723075520. Its totient is φ = 761889056.

The previous prime is 2287448641. The next prime is 2287448749. The reversal of 2287448664 is 4668447822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5094 + ... + 67829.

It is an arithmetic number, because the mean of its divisors is an integer number (178846110).

Almost surely, 22287448664 is an apocalyptic number.

2287448664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2287448664 is an abundant number, since it is smaller than the sum of its proper divisors (3435626856).

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

2287448664 is a wasteful number, since it uses less digits than its factorization.

2287448664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74239 (or 74235 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 51.

The square root of 2287448664 is about 47827.2794961202. The cubic root of 2287448664 is about 1317.6006044731.

The spelling of 2287448664 in words is "two billion, two hundred eighty-seven million, four hundred forty-eight thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 24 1307 2614 3921 5228 7842 10456 15684 31368 72923 145846 218769 291692 437538 583384 875076 1750152 95310361 190620722 285931083 381241444 571862166 762482888 1143724332 2287448664