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20741934 = 2310333563
BaseRepresentation
bin100111100011…
…1111100101110
31110000210120210
41033013330232
520302220214
62020323250
7341206053
oct117077456
943023523
1020741934
11107877a4
126b43526
1343b3045
142a7d02a
151c4ab59
hex13c7f2e

20741934 has 16 divisors (see below), whose sum is σ = 41887872. Its totient is φ = 6846648.

The previous prime is 20741879. The next prime is 20741947. The reversal of 20741934 is 43914702.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16164 + ... + 17399.

It is an arithmetic number, because the mean of its divisors is an integer number (2617992).

Almost surely, 220741934 is an apocalyptic number.

20741934 is an abundant number, since it is smaller than the sum of its proper divisors (21145938).

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

20741934 is a wasteful number, since it uses less digits than its factorization.

20741934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33671.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 20741934 is about 4554.3313449946. The cubic root of 20741934 is about 274.7576222501.

The spelling of 20741934 in words is "twenty million, seven hundred forty-one thousand, nine hundred thirty-four".

Divisors: 1 2 3 6 103 206 309 618 33563 67126 100689 201378 3456989 6913978 10370967 20741934