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16880144 = 244722447
BaseRepresentation
bin100000001100…
…1001000010000
31011202121012112
41000121020100
513310131034
61401444452
7263323151
oct100311020
934677175
1016880144
11958a336
1257a0728
133660368
142355928
1517367ce
hex1019210

16880144 has 20 divisors (see below), whose sum is σ = 33402624. Its totient is φ = 8260128.

The previous prime is 16880141. The next prime is 16880153. The reversal of 16880144 is 44108861.

It is a super-2 number, since 2×168801442 = 569878522921472, which contains 22 as substring.

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 a self number, because there is not a number n which added to its sum of digits gives 16880144.

It is not an unprimeable number, because it can be changed into a prime (16880141) 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, 10472 + ... + 11975.

Almost surely, 216880144 is an apocalyptic number.

It is an amenable number.

16880144 is a deficient number, since it is larger than the sum of its proper divisors (16522480).

16880144 is a wasteful number, since it uses less digits than its factorization.

16880144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22502 (or 22496 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 16880144 is about 4108.5452413233. The cubic root of 16880144 is about 256.5224519205.

The spelling of 16880144 in words is "sixteen million, eight hundred eighty thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 47 94 188 376 752 22447 44894 89788 179576 359152 1055009 2110018 4220036 8440072 16880144