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8160426 = 23629193
BaseRepresentation
bin11111001000010010101010
3120100121000000
4133020102222
54042113201
6450523430
7126235221
oct37102252
916317000
108160426
11467405a
122896576
1318c9471
141125cb8
15ab2d86
hex7c84aa

8160426 has 56 divisors (see below), whose sum is σ = 19083780. Its totient is φ = 2612736.

The previous prime is 8160421. The next prime is 8160433. The reversal of 8160426 is 6240618.

It can be written as a sum of positive squares in 2 ways, for example, as 8037225 + 123201 = 2835^2 + 351^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 8160426.

It is not an unprimeable number, because it can be changed into a prime (8160421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 42186 + ... + 42378.

Almost surely, 28160426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8160426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9541890).

8160426 is an abundant number, since it is smaller than the sum of its proper divisors (10923354).

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

8160426 is a wasteful number, since it uses less digits than its factorization.

8160426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 8160426 is about 2856.6459353585. The cubic root of 8160426 is about 201.3280452928.

The spelling of 8160426 in words is "eight million, one hundred sixty thousand, four hundred twenty-six".

Divisors: 1 2 3 6 9 18 27 29 54 58 81 87 162 174 193 243 261 386 486 522 579 729 783 1158 1458 1566 1737 2349 3474 4698 5211 5597 7047 10422 11194 14094 15633 16791 21141 31266 33582 42282 46899 50373 93798 100746 140697 151119 281394 302238 453357 906714 1360071 2720142 4080213 8160426