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1308087264 = 253111238719
BaseRepresentation
bin100110111110111…
…1101001111100000
310101011101201101110
41031331331033200
510134332243024
6333444503320
744262362331
oct11575751740
93334351343
101308087264
11611421360
123060aab40
1317b00a043
14c5a28288
1579c8b629
hex4df7d3e0

1308087264 has 48 divisors (see below), whose sum is σ = 3745889280. Its totient is φ = 396389760.

The previous prime is 1308087251. The next prime is 1308087271. The reversal of 1308087264 is 4627808031.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×13080872642 = 3422184580478011392, which 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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618304 + ... + 620415.

It is an arithmetic number, because the mean of its divisors is an integer number (78039360).

Almost surely, 21308087264 is an apocalyptic number.

It is an amenable number.

1308087264 is an abundant number, since it is smaller than the sum of its proper divisors (2437802016).

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

1308087264 is a wasteful number, since it uses less digits than its factorization.

1308087264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238743 (or 1238735 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 1308087264 is about 36167.4890474857. The cubic root of 1308087264 is about 1093.6513811316.

The spelling of 1308087264 in words is "one billion, three hundred eight million, eighty-seven thousand, two hundred sixty-four".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 66 88 96 132 176 264 352 528 1056 1238719 2477438 3716157 4954876 7432314 9909752 13625909 14864628 19819504 27251818 29729256 39639008 40877727 54503636 59458512 81755454 109007272 118917024 163510908 218014544 327021816 436029088 654043632 1308087264