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23382340 = 2254212777
BaseRepresentation
bin101100100110…
…0100101000100
31121222221112121
41121030211010
521441213330
62153055324
7402514042
oct131144504
947887477
1023382340
1112220553
1279b7544
134ac8b07
143169392
1520bd17a
hex164c944

23382340 has 24 divisors (see below), whose sum is σ = 49237272. Its totient is φ = 9327360.

The previous prime is 23382319. The next prime is 23382343. The reversal of 23382340 is 4328332.

It can be written as a sum of positive squares in 4 ways, for example, as 1179396 + 22202944 = 1086^2 + 4712^2 .

It is not an unprimeable number, because it can be changed into a prime (23382343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7032 + ... + 9808.

It is an arithmetic number, because the mean of its divisors is an integer number (2051553).

Almost surely, 223382340 is an apocalyptic number.

23382340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23382340 is an abundant number, since it is smaller than the sum of its proper divisors (25854932).

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

23382340 is a wasteful number, since it uses less digits than its factorization.

23382340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3207 (or 3205 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 23382340 is about 4835.5289266015. The cubic root of 23382340 is about 285.9538778380.

The spelling of 23382340 in words is "twenty-three million, three hundred eighty-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 421 842 1684 2105 2777 4210 5554 8420 11108 13885 27770 55540 1169117 2338234 4676468 5845585 11691170 23382340