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11920902 = 237283831
BaseRepresentation
bin101101011110…
…011000000110
3211102122101220
4231132120012
511022432102
61103301210
7203216550
oct55363006
924378356
1011920902
116802394
123baa806
132614cb6
1418244d0
1510a71bc
hexb5e606

11920902 has 16 divisors (see below), whose sum is σ = 27247872. Its totient is φ = 3405960.

The previous prime is 11920901. The next prime is 11920903. The reversal of 11920902 is 20902911.

11920902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11920901) and next prime (11920903).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11920901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141874 + ... + 141957.

It is an arithmetic number, because the mean of its divisors is an integer number (1702992).

Almost surely, 211920902 is an apocalyptic number.

11920902 is an abundant number, since it is smaller than the sum of its proper divisors (15326970).

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

11920902 is a wasteful number, since it uses less digits than its factorization.

11920902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283843.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 11920902 is about 3452.6659264980. The cubic root of 11920902 is about 228.4387136191.

Subtracting 11920902 from its reverse (20902911), we obtain a square (8982009 = 29972).

The spelling of 11920902 in words is "eleven million, nine hundred twenty thousand, nine hundred two".

Divisors: 1 2 3 6 7 14 21 42 283831 567662 851493 1702986 1986817 3973634 5960451 11920902