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10389740 = 225519487
BaseRepresentation
bin100111101000…
…100011101100
3201112212001012
4213220203230
510124432430
61010404352
7154211534
oct47504354
921485035
1010389740
115956a69
1235906b8
1321ca09a
1415464c4
15da3695
hex9e88ec

10389740 has 12 divisors (see below), whose sum is σ = 21818496. Its totient is φ = 4155888.

The previous prime is 10389733. The next prime is 10389781. The reversal of 10389740 is 4798301.

10389740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 10389697 and 10389706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259724 + ... + 259763.

It is an arithmetic number, because the mean of its divisors is an integer number (1818208).

Almost surely, 210389740 is an apocalyptic number.

10389740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10389740 is an abundant number, since it is smaller than the sum of its proper divisors (11428756).

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

10389740 is a wasteful number, since it uses less digits than its factorization.

10389740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519496 (or 519494 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 10389740 is about 3223.3119613218. The cubic root of 10389740 is about 218.2067729243.

The spelling of 10389740 in words is "ten million, three hundred eighty-nine thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 519487 1038974 2077948 2597435 5194870 10389740