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10623940 = 225531197
BaseRepresentation
bin101000100001…
…101111000100
3201222202022021
4220201233010
510204431230
61015412524
7156205405
oct50415704
921882267
1010623940
115aa6a18
123684144
13227c872
1415a79ac
15decc7a
hexa21bc4

10623940 has 12 divisors (see below), whose sum is σ = 22310316. Its totient is φ = 4249568.

The previous prime is 10623937. The next prime is 10623941. The reversal of 10623940 is 4932601.

It can be written as a sum of positive squares in 2 ways, for example, as 6061444 + 4562496 = 2462^2 + 2136^2 .

It is a super-2 number, since 2×106239402 = 225736202247200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10623941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265579 + ... + 265618.

It is an arithmetic number, because the mean of its divisors is an integer number (1859193).

Almost surely, 210623940 is an apocalyptic number.

10623940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10623940 is an abundant number, since it is smaller than the sum of its proper divisors (11686376).

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

10623940 is a wasteful number, since it uses less digits than its factorization.

10623940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531206 (or 531204 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 10623940 is about 3259.4386019681. The cubic root of 10623940 is about 219.8341725578.

The spelling of 10623940 in words is "ten million, six hundred twenty-three thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 531197 1062394 2124788 2655985 5311970 10623940