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20260768 = 251157559
BaseRepresentation
bin100110101001…
…0011110100000
31102010100112211
41031102132200
520141321033
62002131504
7334133203
oct115223640
942110484
1020260768
1110489240
126950b94
134275028
14299593a
151ba32cd
hex13527a0

20260768 has 24 divisors (see below), whose sum is σ = 43515360. Its totient is φ = 9209280.

The previous prime is 20260741. The next prime is 20260781. The reversal of 20260768 is 86706202.

It is a happy 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 3 ways as a sum of consecutive naturals, for example, 28428 + ... + 29131.

It is an arithmetic number, because the mean of its divisors is an integer number (1813140).

Almost surely, 220260768 is an apocalyptic number.

It is an amenable number.

20260768 is an abundant number, since it is smaller than the sum of its proper divisors (23254592).

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

20260768 is a wasteful number, since it uses less digits than its factorization.

20260768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57580 (or 57572 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 20260768 is about 4501.1962854335. The cubic root of 20260768 is about 272.6163933380.

The spelling of 20260768 in words is "twenty million, two hundred sixty thousand, seven hundred sixty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 57559 115118 230236 460472 633149 920944 1266298 1841888 2532596 5065192 10130384 20260768