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20714406 = 2326313127
BaseRepresentation
bin100111100000…
…1001110100110
31102222101211020
41033001032212
520300330111
62015552010
7341032566
oct117011646
942871736
1020714406
1110769049
126b2b606
1343a365b
142a72da6
151c42906
hex13c13a6

20714406 has 16 divisors (see below), whose sum is σ = 41589504. Its totient is φ = 6878024.

The previous prime is 20714383. The next prime is 20714429. The reversal of 20714406 is 60441702.

It is an interprime number because it is at equal distance from previous prime (20714383) and next prime (20714429).

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, 4986 + ... + 8141.

It is an arithmetic number, because the mean of its divisors is an integer number (2599344).

Almost surely, 220714406 is an apocalyptic number.

20714406 is the 2879-th centered pentagonal number.

20714406 is an abundant number, since it is smaller than the sum of its proper divisors (20875098).

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

20714406 is a wasteful number, since it uses less digits than its factorization.

20714406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13395.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 20714406 is about 4551.3081635943. The cubic root of 20714406 is about 274.6360187340.

The spelling of 20714406 in words is "twenty million, seven hundred fourteen thousand, four hundred six".

Divisors: 1 2 3 6 263 526 789 1578 13127 26254 39381 78762 3452401 6904802 10357203 20714406