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9213980 = 2251732663
BaseRepresentation
bin100011001001…
…100000011100
3122100010012112
4203021200130
54324321410
6525253152
7141213626
oct43114034
918303175
109213980
115223666
1231041b8
131ba7b79
14131bc16
15c20105
hex8c981c

9213980 has 24 divisors (see below), whose sum is σ = 19468512. Its totient is φ = 3662912.

The previous prime is 9213979. The next prime is 9214001. The reversal of 9213980 is 893129.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2129 + ... + 4791.

It is an arithmetic number, because the mean of its divisors is an integer number (811188).

Almost surely, 29213980 is an apocalyptic number.

It is an amenable number.

9213980 is an abundant number, since it is smaller than the sum of its proper divisors (10254532).

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

9213980 is a wasteful number, since it uses less digits than its factorization.

9213980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845 (or 2843 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 9213980 is about 3035.4538375670. The cubic root of 9213980 is about 209.6439924266.

The spelling of 9213980 in words is "nine million, two hundred thirteen thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 173 346 692 865 1730 2663 3460 5326 10652 13315 26630 53260 460699 921398 1842796 2303495 4606990 9213980