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889697796988 = 2271113415419567
BaseRepresentation
bin11001111001001100001…
…11110000001101111100
310011001110120100221111211
430330212013300031330
5104034100114000423
61520415503254204
7121164353332150
oct14744607601574
93131416327454
10889697796988
11313356237230
12124519baa364
1365b8a2ac1b0
14310c1079060
1518222d7710d
hexcf261f037c

889697796988 has 96 divisors (see below), whose sum is σ = 2141466421248. Its totient is φ = 312167001600.

The previous prime is 889697796931. The next prime is 889697797003.

889697796988 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 889697796896 and 889697796905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2545620 + ... + 2873947.

It is an arithmetic number, because the mean of its divisors is an integer number (22306941888).

Almost surely, 2889697796988 is an apocalyptic number.

It is an amenable number.

889697796988 is an abundant number, since it is smaller than the sum of its proper divisors (1251768624260).

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

889697796988 is a wasteful number, since it uses less digits than its factorization.

889697796988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5419643 (or 5419641 counting only the distinct ones).

The product of its digits is 47405481984, while the sum is 94.

The spelling of 889697796988 in words is "eight hundred eighty-nine billion, six hundred ninety-seven million, seven hundred ninety-six thousand, nine hundred eighty-eight".

Divisors: 1 2 4 7 11 13 14 22 26 28 41 44 52 77 82 91 143 154 164 182 286 287 308 364 451 533 572 574 902 1001 1066 1148 1804 2002 2132 3157 3731 4004 5863 6314 7462 11726 12628 14924 23452 41041 82082 164164 5419567 10839134 21678268 37936969 59615237 70454371 75873938 119230474 140908742 151747876 222202247 238460948 281817484 417306659 444404494 493180597 774998081 834613318 888808988 986361194 1549996162 1555415729 1669226636 1972722388 2444224717 2888629211 3099992324 3110831458 4888449434 5424986567 5777258422 6221662916 9776898868 10849973134 11554516844 17109573019 20220404477 21699946268 31774921321 34219146038 40440808954 63549842642 68438292076 80881617908 127099685284 222424449247 444848898494 889697796988