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389019274882 = 27196129278191
BaseRepresentation
bin1011010100100110101…
…10110000111010000010
31101012010102101201220221
411222103112300322002
522333202413244012
6454414001053254
740051155164110
oct5522326607202
91335112351827
10389019274882
1113aa8926a067
126348992722a
132a8b8702064
1414b85aacab0
15a1bc8b5507
hex5a935b0e82

389019274882 has 64 divisors (see below), whose sum is σ = 713828597760. Its totient is φ = 155286331200.

The previous prime is 389019274867. The next prime is 389019274913. The reversal of 389019274882 is 288472910983.

It is a super-2 number, since 2×3890192748822 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a self number, because there is not a number n which added to its sum of digits gives 389019274882.

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, 47489407 + ... + 47497597.

It is an arithmetic number, because the mean of its divisors is an integer number (11153571840).

Almost surely, 2389019274882 is an apocalyptic number.

389019274882 is a deficient number, since it is larger than the sum of its proper divisors (324809322878).

389019274882 is a wasteful number, since it uses less digits than its factorization.

389019274882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11207.

The product of its (nonzero) digits is 13934592, while the sum is 61.

The spelling of 389019274882 in words is "three hundred eighty-nine billion, nineteen million, two hundred seventy-four thousand, eight hundred eighty-two".

Divisors: 1 2 7 14 19 38 61 122 133 266 427 854 1159 2318 2927 5854 8113 8191 16226 16382 20489 40978 55613 57337 111226 114674 155629 178547 311258 357094 389291 499651 778582 999302 1089403 1249829 2178806 2499658 3392393 3497557 6784786 6995114 9493369 18986738 23746751 23975057 47493502 47950114 66453583 132907166 167825399 335650798 455526083 911052166 1462478477 2924956954 3188682581 6377365162 10237349339 20474698678 27787091063 55574182126 194509637441 389019274882