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23350380 = 2235389173
BaseRepresentation
bin101100100010…
…0110001101100
31121221022200220
41121010301230
521434203010
62152251340
7402321624
oct131046154
947838626
1023350380
11121a9539
1279a0b50
134ab73c1
14315b884
1520b3970
hex1644c6c

23350380 has 24 divisors (see below), whose sum is σ = 65381232. Its totient is φ = 6226752.

The previous prime is 23350363. The next prime is 23350387. The reversal of 23350380 is 8305332.

It is a super-2 number, since 2×233503802 = 1090480492288800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23350380.

It is not an unprimeable number, because it can be changed into a prime (23350387) 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 7 ways as a sum of consecutive naturals, for example, 194527 + ... + 194646.

It is an arithmetic number, because the mean of its divisors is an integer number (2724218).

Almost surely, 223350380 is an apocalyptic number.

23350380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23350380 is an abundant number, since it is smaller than the sum of its proper divisors (42030852).

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

23350380 is a wasteful number, since it uses less digits than its factorization.

23350380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389185 (or 389183 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 23350380 is about 4832.2230908765. The cubic root of 23350380 is about 285.8235336979.

The spelling of 23350380 in words is "twenty-three million, three hundred fifty thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 389173 778346 1167519 1556692 1945865 2335038 3891730 4670076 5837595 7783460 11675190 23350380