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889613642960 = 245712107131213
BaseRepresentation
bin11001111001000010001…
…10101110110011010000
310011001020201000110212222
430330201012232303100
5104033412043033320
61520403255440212
7121162312125140
oct14744106566320
93131221013788
10889613642960
11313312789049
121244b5986068
1365b75a26103
14310b3c10920
151821a7a2825
hexcf211aecd0

889613642960 has 80 divisors (see below), whose sum is σ = 2364043798656. Its totient is φ = 304982874624.

The previous prime is 889613642941. The next prime is 889613642963. The reversal of 889613642960 is 69246316988.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 889613642893 and 889613642902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889613642963) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6714314 + ... + 6845526.

Almost surely, 2889613642960 is an apocalyptic number.

889613642960 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

889613642960 is an abundant number, since it is smaller than the sum of its proper divisors (1474430155696).

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

889613642960 is a wasteful number, since it uses less digits than its factorization.

889613642960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143340 (or 143334 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 62.

The spelling of 889613642960 in words is "eight hundred eighty-nine billion, six hundred thirteen million, six hundred forty-two thousand, nine hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 12107 24214 48428 60535 84749 96856 121070 131213 169498 193712 242140 262426 338996 423745 484280 524852 656065 677992 847490 918491 968560 1049704 1312130 1355984 1694980 1836982 2099408 2624260 3389960 3673964 4592455 5248520 6779920 7347928 9184910 10497040 14695856 18369820 36739640 73479280 1588595791 3177191582 6354383164 7942978955 11120170537 12708766328 15885957910 22240341074 25417532656 31771915820 44480682148 55600852685 63543831640 88961364296 111201705370 127087663280 177922728592 222403410740 444806821480 889613642960