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16868652 = 2231405721
BaseRepresentation
bin100000001011…
…0010100101100
31011202000102220
41000112110230
513304244102
61401315340
7263244513
oct100262454
934660386
1016868652
119581739
125795b50
133658068
14235167a
1517331bc
hex101652c

16868652 has 12 divisors (see below), whose sum is σ = 39360216. Its totient is φ = 5622880.

The previous prime is 16868639. The next prime is 16868653. The reversal of 16868652 is 25686861.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (16868653) 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, 702849 + ... + 702872.

It is an arithmetic number, because the mean of its divisors is an integer number (3280018).

Almost surely, 216868652 is an apocalyptic number.

16868652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16868652 is an abundant number, since it is smaller than the sum of its proper divisors (22491564).

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

16868652 is a wasteful number, since it uses less digits than its factorization.

16868652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405728 (or 1405726 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 16868652 is about 4107.1464546568. The cubic root of 16868652 is about 256.4642252201.

The spelling of 16868652 in words is "sixteen million, eight hundred sixty-eight thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 1405721 2811442 4217163 5622884 8434326 16868652