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13023290 = 257238089
BaseRepresentation
bin110001101011…
…100000111010
3220111122121002
4301223200322
511313221130
61143045002
7215460530
oct61534072
926448532
1013023290
117395655
124440762
13290c9b7
141a30150
151223b45
hexc6b83a

13023290 has 32 divisors (see below), whose sum is σ = 27959040. Its totient is φ = 4270464.

The previous prime is 13023289. The next prime is 13023383. The reversal of 13023290 is 9232031.

13023290 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

13023290 is strictly pandigital in base 8.

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, 2435 + ... + 5654.

It is an arithmetic number, because the mean of its divisors is an integer number (873720).

Almost surely, 213023290 is an apocalyptic number.

13023290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13023290 is an abundant number, since it is smaller than the sum of its proper divisors (14935750).

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

13023290 is a wasteful number, since it uses less digits than its factorization.

13023290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8126.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 13023290 is about 3608.7795720991. The cubic root of 13023290 is about 235.2738018857.

The spelling of 13023290 in words is "thirteen million, twenty-three thousand, two hundred ninety".

Divisors: 1 2 5 7 10 14 23 35 46 70 115 161 230 322 805 1610 8089 16178 40445 56623 80890 113246 186047 283115 372094 566230 930235 1302329 1860470 2604658 6511645 13023290