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16920498 = 237402869
BaseRepresentation
bin100000010001…
…0111110110010
31011211122120010
41000202332302
513312423443
61402355350
7263551620
oct100427662
934748503
1016920498
119607691
1257bbb56
13367583a
142366510
151743733
hex1022fb2

16920498 has 16 divisors (see below), whose sum is σ = 38675520. Its totient is φ = 4834416.

The previous prime is 16920493. The next prime is 16920511. The reversal of 16920498 is 89402961.

It is not an unprimeable number, because it can be changed into a prime (16920493) 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, 201393 + ... + 201476.

It is an arithmetic number, because the mean of its divisors is an integer number (2417220).

Almost surely, 216920498 is an apocalyptic number.

16920498 is an abundant number, since it is smaller than the sum of its proper divisors (21755022).

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

16920498 is a wasteful number, since it uses less digits than its factorization.

16920498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402881.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 16920498 is about 4113.4532937667. The cubic root of 16920498 is about 256.7267050944.

The spelling of 16920498 in words is "sixteen million, nine hundred twenty thousand, four hundred ninety-eight".

Divisors: 1 2 3 6 7 14 21 42 402869 805738 1208607 2417214 2820083 5640166 8460249 16920498