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20627496 = 2332286493
BaseRepresentation
bin100111010110…
…0000000101000
31102210222121100
41032230000220
520240034441
62014041400
7340221321
oct116540050
942728540
1020627496
111070981a
126aa9260
134372c26
142a4d448
151c26cb6
hex13ac028

20627496 has 24 divisors (see below), whose sum is σ = 55866330. Its totient is φ = 6875808.

The previous prime is 20627489. The next prime is 20627531. The reversal of 20627496 is 69472602.

It is a happy number.

20627496 is a `hidden beast` number, since 20 + 627 + 4 + 9 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19448100 + 1179396 = 4410^2 + 1086^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20627496.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 143175 + ... + 143318.

Almost surely, 220627496 is an apocalyptic number.

It is an amenable number.

20627496 is an abundant number, since it is smaller than the sum of its proper divisors (35238834).

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

20627496 is a wasteful number, since it uses less digits than its factorization.

20627496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286505 (or 286498 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 20627496 is about 4541.7503233886. The cubic root of 20627496 is about 274.2513898640.

The spelling of 20627496 in words is "twenty million, six hundred twenty-seven thousand, four hundred ninety-six".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 286493 572986 859479 1145972 1718958 2291944 2578437 3437916 5156874 6875832 10313748 20627496