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16772380 = 2255315823
BaseRepresentation
bin111111111110…
…110100011100
31011120010101021
4333332310130
513243204010
61355253524
7262364032
oct77766434
934503337
1016772380
119516379
12574a2a4
1336232b1
142328552
1517148da
hexffed1c

16772380 has 24 divisors (see below), whose sum is σ = 35888832. Its totient is φ = 6581952.

The previous prime is 16772341. The next prime is 16772389. The reversal of 16772380 is 8327761.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16772389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6852 + ... + 8971.

It is an arithmetic number, because the mean of its divisors is an integer number (1495368).

Almost surely, 216772380 is an apocalyptic number.

16772380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16772380 is an abundant number, since it is smaller than the sum of its proper divisors (19116452).

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

16772380 is a wasteful number, since it uses less digits than its factorization.

16772380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15885 (or 15883 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 16772380 is about 4095.4096254221. The cubic root of 16772380 is about 255.9754004683.

The spelling of 16772380 in words is "sixteen million, seven hundred seventy-two thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 15823 31646 63292 79115 158230 316460 838619 1677238 3354476 4193095 8386190 16772380