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20276032 = 26745259
BaseRepresentation
bin100110101011…
…0001101000000
31102011010111011
41031112031000
520142313112
62002330304
7334225540
oct115261500
942133434
1020276032
1110499757
126959994
13427bc6a
14299b320
151ba7aa7
hex1356340

20276032 has 28 divisors (see below), whose sum is σ = 45984160. Its totient is φ = 8689536.

The previous prime is 20276023. The next prime is 20276033. The reversal of 20276032 is 23067202.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-2 number, since 2×202760322 = 822234947330048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20275994 and 20276012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20276033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22182 + ... + 23077.

Almost surely, 220276032 is an apocalyptic number.

It is an amenable number.

20276032 is an abundant number, since it is smaller than the sum of its proper divisors (25708128).

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

20276032 is an equidigital number, since it uses as much as digits as its factorization.

20276032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45278 (or 45268 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 20276032 is about 4502.8915154598. The cubic root of 20276032 is about 272.6848371416.

The spelling of 20276032 in words is "twenty million, two hundred seventy-six thousand, thirty-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 224 448 45259 90518 181036 316813 362072 633626 724144 1267252 1448288 2534504 2896576 5069008 10138016 20276032