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10421860 = 2254391187
BaseRepresentation
bin100111110000…
…011001100100
3201121111002211
4213300121210
510131444420
61011213204
7154404301
oct47603144
921544084
1010421860
115979109
1235a7204
13220b8a7
1415540a8
15dace5a
hex9f0664

10421860 has 24 divisors (see below), whose sum is σ = 21954240. Its totient is φ = 4155744.

The previous prime is 10421837. The next prime is 10421863. The reversal of 10421860 is 6812401.

It is not an unprimeable number, because it can be changed into a prime (10421863) 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, 8187 + ... + 9373.

It is an arithmetic number, because the mean of its divisors is an integer number (914760).

Almost surely, 210421860 is an apocalyptic number.

10421860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10421860 is an abundant number, since it is smaller than the sum of its proper divisors (11532380).

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

10421860 is a wasteful number, since it uses less digits than its factorization.

10421860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635 (or 1633 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 10421860 is about 3228.2905693261. The cubic root of 10421860 is about 218.4314045105.

The spelling of 10421860 in words is "ten million, four hundred twenty-one thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 439 878 1187 1756 2195 2374 4390 4748 5935 8780 11870 23740 521093 1042186 2084372 2605465 5210930 10421860