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10023940 = 225501197
BaseRepresentation
bin100110001111…
…010000000100
3200212021021001
4212033100010
510031231230
6554503044
7151126213
oct46172004
920767231
1010023940
115727153
123434a84
1320cc734
14148d07a
15d300ca
hex98f404

10023940 has 12 divisors (see below), whose sum is σ = 21050316. Its totient is φ = 4009568.

The previous prime is 10023919. The next prime is 10023941. The reversal of 10023940 is 4932001.

It can be written as a sum of positive squares in 2 ways, for example, as 6031936 + 3992004 = 2456^2 + 1998^2 .

It is not an unprimeable number, because it can be changed into a prime (10023941) 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, 250579 + ... + 250618.

It is an arithmetic number, because the mean of its divisors is an integer number (1754193).

Almost surely, 210023940 is an apocalyptic number.

10023940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10023940 is an abundant number, since it is smaller than the sum of its proper divisors (11026376).

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

10023940 is a wasteful number, since it uses less digits than its factorization.

10023940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501206 (or 501204 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 10023940 is about 3166.0606437654. The cubic root of 10023940 is about 215.6152558784.

Adding to 10023940 its reverse (4932001), we get a palindrome (14955941).

The spelling of 10023940 in words is "ten million, twenty-three thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 501197 1002394 2004788 2505985 5011970 10023940