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16908620 = 225845431
BaseRepresentation
bin100000010000…
…0000101001100
31011211001021012
41000200011030
513312033440
61402224352
7263502161
oct100400514
934731235
1016908620
1195a9773
1257b50b8
133670301
142362068
15173ee65
hex102014c

16908620 has 12 divisors (see below), whose sum is σ = 35508144. Its totient is φ = 6763440.

The previous prime is 16908601. The next prime is 16908629. The reversal of 16908620 is 2680961.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (16908629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422696 + ... + 422735.

It is an arithmetic number, because the mean of its divisors is an integer number (2959012).

Almost surely, 216908620 is an apocalyptic number.

16908620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16908620 is an abundant number, since it is smaller than the sum of its proper divisors (18599524).

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

16908620 is a wasteful number, since it uses less digits than its factorization.

16908620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845440 (or 845438 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 16908620 is about 4112.0092412348. The cubic root of 16908620 is about 256.6666179419. Note that the first 4 decimals are identical.

The spelling of 16908620 in words is "sixteen million, nine hundred eight thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 845431 1690862 3381724 4227155 8454310 16908620