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23006490 = 2351358991
BaseRepresentation
bin101011111000…
…0110100011010
31121021211222020
41113300310122
521342201430
62141035310
7366360213
oct127606432
947254866
1023006490
1111a94131
127855b36
1349c6a10
1430ac40a
152046b10
hex15f0d1a

23006490 has 32 divisors (see below), whose sum is σ = 59463936. Its totient is φ = 5663040.

The previous prime is 23006471. The next prime is 23006497. The reversal of 23006490 is 9460032.

It is a self number, because there is not a number n which added to its sum of digits gives 23006490.

It is not an unprimeable number, because it can be changed into a prime (23006497) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 29106 + ... + 29885.

It is an arithmetic number, because the mean of its divisors is an integer number (1858248).

Almost surely, 223006490 is an apocalyptic number.

23006490 is an abundant number, since it is smaller than the sum of its proper divisors (36457446).

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

23006490 is a wasteful number, since it uses less digits than its factorization.

23006490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59014.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 23006490 is about 4796.5081048613. The cubic root of 23006490 is about 284.4134443054.

The spelling of 23006490 in words is "twenty-three million, six thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 58991 117982 176973 294955 353946 589910 766883 884865 1533766 1769730 2300649 3834415 4601298 7668830 11503245 23006490