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13021092 = 22327163317
BaseRepresentation
bin110001101010…
…111110100100
3220111112120200
4301222332210
511313133332
61143030500
7215451240
oct61527644
926445520
1013021092
117393a37
12443b430
13290b9b6
141a2d420
15122317c
hexc6afa4

13021092 has 72 divisors (see below), whose sum is σ = 37966656. Its totient is φ = 3685824.

The previous prime is 13021079. The next prime is 13021117. The reversal of 13021092 is 29012031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40918 + ... + 41234.

Almost surely, 213021092 is an apocalyptic number.

13021092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13021092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18983328).

13021092 is an abundant number, since it is smaller than the sum of its proper divisors (24945564).

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

13021092 is a wasteful number, since it uses less digits than its factorization.

13021092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497 (or 492 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 13021092 is about 3608.4750241619. The cubic root of 13021092 is about 235.2605650637.

The spelling of 13021092 in words is "thirteen million, twenty-one thousand, ninety-two".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 163 252 317 326 489 634 652 951 978 1141 1268 1467 1902 1956 2219 2282 2853 2934 3423 3804 4438 4564 5706 5868 6657 6846 8876 10269 11412 13314 13692 19971 20538 26628 39942 41076 51671 79884 103342 155013 206684 310026 361697 465039 620052 723394 930078 1085091 1446788 1860156 2170182 3255273 4340364 6510546 13021092