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20741304 = 233864221
BaseRepresentation
bin100111100011…
…1110010111000
31110000202201110
41033013302320
520302210204
62020320320
7341204163
oct117076270
943022643
1020741304
1110787281
126b430a0
1343b297c
142a7cada
151c4a889
hex13c7cb8

20741304 has 16 divisors (see below), whose sum is σ = 51853320. Its totient is φ = 6913760.

The previous prime is 20741297. The next prime is 20741311. The reversal of 20741304 is 40314702.

It is an interprime number because it is at equal distance from previous prime (20741297) and next prime (20741311).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 432087 + ... + 432134.

Almost surely, 220741304 is an apocalyptic number.

20741304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20741304 is an abundant number, since it is smaller than the sum of its proper divisors (31112016).

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

20741304 is a wasteful number, since it uses less digits than its factorization.

20741304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864230 (or 864226 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 20741304 is about 4554.2621795413. The cubic root of 20741304 is about 274.7548404610.

The spelling of 20741304 in words is "twenty million, seven hundred forty-one thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 24 864221 1728442 2592663 3456884 5185326 6913768 10370652 20741304