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20245934 = 223716199
BaseRepresentation
bin100110100111…
…0110110101110
31102002121012102
41031032312232
520140332214
62001535102
7334042022
oct115166656
942077172
1020245934
1110479085
126944492
13426b357
142990382
151b9dbde
hex134edae

20245934 has 16 divisors (see below), whose sum is σ = 32140800. Its totient is φ = 9544920.

The previous prime is 20245931. The next prime is 20245943. The reversal of 20245934 is 43954202.

It is a junction number, because it is equal to n+sod(n) for n = 20245897 and 20245906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20245931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167 + ... + 6365.

It is an arithmetic number, because the mean of its divisors is an integer number (2008800).

Almost surely, 220245934 is an apocalyptic number.

20245934 is a deficient number, since it is larger than the sum of its proper divisors (11894866).

20245934 is a wasteful number, since it uses less digits than its factorization.

20245934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6295.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 20245934 is about 4499.5481995418. The cubic root of 20245934 is about 272.5498447103.

The spelling of 20245934 in words is "twenty million, two hundred forty-five thousand, nine hundred thirty-four".

Divisors: 1 2 23 46 71 142 1633 3266 6199 12398 142577 285154 440129 880258 10122967 20245934