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16916380 = 2251365063
BaseRepresentation
bin100000010000…
…1111110011100
31011211102220121
41000201332130
513312311010
61402324324
7263533615
oct100417634
934742817
1016916380
119604588
1257b96a4
1336739c0
142364c0c
1517423da
hex1021f9c

16916380 has 24 divisors (see below), whose sum is σ = 38257632. Its totient is φ = 6245952.

The previous prime is 16916353. The next prime is 16916387. The reversal of 16916380 is 8361961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16916387) 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, 32272 + ... + 32791.

It is an arithmetic number, because the mean of its divisors is an integer number (1594068).

Almost surely, 216916380 is an apocalyptic number.

16916380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16916380 is an abundant number, since it is smaller than the sum of its proper divisors (21341252).

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

16916380 is a wasteful number, since it uses less digits than its factorization.

16916380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65085 (or 65083 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 16916380 is about 4112.9527106448. The cubic root of 16916380 is about 256.7058765832.

The spelling of 16916380 in words is "sixteen million, nine hundred sixteen thousand, three hundred eighty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 65063 130126 260252 325315 650630 845819 1301260 1691638 3383276 4229095 8458190 16916380