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20792496 = 2431783307
BaseRepresentation
bin100111101010…
…0010010110000
31110010100221110
41033110102300
520310324441
62021353320
7341506344
oct117242260
943110843
1020792496
111081178a
126b68840
13440006a
142a93624
151c5ab16
hex13d44b0

20792496 has 80 divisors (see below), whose sum is σ = 57746304. Its totient is φ = 6423552.

The previous prime is 20792477. The next prime is 20792501. The reversal of 20792496 is 69429702.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 67575 + ... + 67881.

Almost surely, 220792496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20792496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28873152).

20792496 is an abundant number, since it is smaller than the sum of its proper divisors (36953808).

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

20792496 is a wasteful number, since it uses less digits than its factorization.

20792496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 20792496 is about 4559.8789457616. The cubic root of 20792496 is about 274.9806972677.

The spelling of 20792496 in words is "twenty million, seven hundred ninety-two thousand, four hundred ninety-six".

Divisors: 1 2 3 4 6 8 12 16 17 24 34 48 51 68 83 102 136 166 204 249 272 307 332 408 498 614 664 816 921 996 1228 1328 1411 1842 1992 2456 2822 3684 3984 4233 4912 5219 5644 7368 8466 10438 11288 14736 15657 16932 20876 22576 25481 31314 33864 41752 50962 62628 67728 76443 83504 101924 125256 152886 203848 250512 305772 407696 433177 611544 866354 1223088 1299531 1732708 2599062 3465416 5198124 6930832 10396248 20792496