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20359992 = 2337311621
BaseRepresentation
bin100110110101…
…0101100111000
31102022101122210
41031222230320
520203004432
62004215120
7335025402
oct115525470
942271583
1020359992
1110546844
12699a4a0
1342ab243
1429bdb72
151bc28cc
hex136ab38

20359992 has 32 divisors (see below), whose sum is σ = 51601680. Its totient is φ = 6693120.

The previous prime is 20359987. The next prime is 20359993. The reversal of 20359992 is 29995302.

It is a self number, because there is not a number n which added to its sum of digits gives 20359992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20359993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4059 + ... + 7562.

Almost surely, 220359992 is an apocalyptic number.

It is an amenable number.

20359992 is an abundant number, since it is smaller than the sum of its proper divisors (31241688).

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

20359992 is a wasteful number, since it uses less digits than its factorization.

20359992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11703 (or 11699 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 20359992 is about 4512.2047825869. The cubic root of 20359992 is about 273.0607011234.

The spelling of 20359992 in words is "twenty million, three hundred fifty-nine thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 24 73 146 219 292 438 584 876 1752 11621 23242 34863 46484 69726 92968 139452 278904 848333 1696666 2544999 3393332 5089998 6786664 10179996 20359992