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12369490 = 257832129
BaseRepresentation
bin101111001011…
…111001010010
3212021102202021
4233023321102
511131310430
61121042054
7210065440
oct57137122
925242667
1012369490
116a89421
12418632a
132741233
1418ddb90
15114507a
hexbcbe52

12369490 has 32 divisors (see below), whose sum is σ = 25764480. Its totient is φ = 4187904.

The previous prime is 12369479. The next prime is 12369499. The reversal of 12369490 is 9496321.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12369499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4746 + ... + 6874.

It is an arithmetic number, because the mean of its divisors is an integer number (805140).

Almost surely, 212369490 is an apocalyptic number.

12369490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12369490 is an abundant number, since it is smaller than the sum of its proper divisors (13394990).

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

12369490 is a wasteful number, since it uses less digits than its factorization.

12369490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 12369490 is about 3517.0285753744. The cubic root of 12369490 is about 231.2689159107.

The spelling of 12369490 in words is "twelve million, three hundred sixty-nine thousand, four hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 83 166 415 581 830 1162 2129 2905 4258 5810 10645 14903 21290 29806 74515 149030 176707 353414 883535 1236949 1767070 2473898 6184745 12369490