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12844470160 = 245413915997
BaseRepresentation
bin10111111011001011…
…10000111110010000
31020011011010200122001
423331211300332100
5202301141021120
65522313323344
7633204123604
oct137545607620
936134120561
1012844470160
1154a14065a5
1225a5706554
1312990b7b02
1489bc41504
1550297de0a
hex2fd970f90

12844470160 has 40 divisors (see below), whose sum is σ = 30591776376. Its totient is φ = 5012474880.

The previous prime is 12844470151. The next prime is 12844470203. The reversal of 12844470160 is 6107444821.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1611861904 + 11232608256 = 40148^2 + 105984^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×128444701602 (a number of 21 digits) contains 22 as substring.

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, 1954719 + ... + 1961278.

Almost surely, 212844470160 is an apocalyptic number.

12844470160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12844470160 is an abundant number, since it is smaller than the sum of its proper divisors (17747306216).

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

12844470160 is a wasteful number, since it uses less digits than its factorization.

12844470160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3916051 (or 3916045 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The spelling of 12844470160 in words is "twelve billion, eight hundred forty-four million, four hundred seventy thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 41 80 82 164 205 328 410 656 820 1640 3280 3915997 7831994 15663988 19579985 31327976 39159970 62655952 78319940 156639880 160555877 313279760 321111754 642223508 802779385 1284447016 1605558770 2568894032 3211117540 6422235080 12844470160