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28885743003146 = 2232837823283639
BaseRepresentation
bin1101001000101011111000…
…11100110110011000001010
310210021110011002120111202212
412210111330130312120022
512241231000202100041
6141233532132425122
76040632432240161
oct644257434663012
9123243132514685
1028885743003146
11922741396a337
1232a6300a781a2
131316bb5a32a83
1471c11262c3d8
153515b787c8eb
hex1a457c73660a

28885743003146 has 32 divisors (see below), whose sum is σ = 45378188513280. Its totient is φ = 13764296368944.

The previous prime is 28885743003133. The next prime is 28885743003223. The reversal of 28885743003146 is 64130034758882.

It is a super-2 number, since 2×288857430031462 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101697995 + ... + 101981633.

It is an arithmetic number, because the mean of its divisors is an integer number (1418068391040).

Almost surely, 228885743003146 is an apocalyptic number.

28885743003146 is a deficient number, since it is larger than the sum of its proper divisors (16492445510134).

28885743003146 is a wasteful number, since it uses less digits than its factorization.

28885743003146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291770.

The product of its (nonzero) digits is 30965760, while the sum is 59.

The spelling of 28885743003146 in words is "twenty-eight trillion, eight hundred eighty-five billion, seven hundred forty-three million, three thousand, one hundred forty-six".

Divisors: 1 2 23 46 283 566 6509 7823 13018 15646 179929 283639 359858 567278 2213909 4427818 6523697 13047394 50919907 80269837 101839814 160539674 1846206251 2218907897 3692412502 4437815794 51034881631 102069763262 627950934851 1255901869702 14442871501573 28885743003146