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20252796 = 2233154443
BaseRepresentation
bin100110101000…
…0100001111100
31102002221121120
41031100201330
520141042141
62002030540
7334101024
oct115204174
942087546
1020252796
1110483253
126948450
134271505
142992a84
151ba0c66
hex135087c

20252796 has 24 divisors (see below), whose sum is σ = 48781824. Its totient is φ = 6533040.

The previous prime is 20252783. The next prime is 20252807. The reversal of 20252796 is 69725202.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 26850 + ... + 27593.

It is an arithmetic number, because the mean of its divisors is an integer number (2032576).

Almost surely, 220252796 is an apocalyptic number.

It is an amenable number.

20252796 is an abundant number, since it is smaller than the sum of its proper divisors (28529028).

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

20252796 is a wasteful number, since it uses less digits than its factorization.

20252796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54481 (or 54479 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 20252796 is about 4500.3106559437. The cubic root of 20252796 is about 272.5806332097.

Adding to 20252796 its reverse (69725202), we get a palindrome (89977998).

The spelling of 20252796 in words is "twenty million, two hundred fifty-two thousand, seven hundred ninety-six".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 54443 108886 163329 217772 326658 653316 1687733 3375466 5063199 6750932 10126398 20252796