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20713353 = 328124571
BaseRepresentation
bin100111100000…
…0111110001001
31102222100101020
41033000332021
520300311403
62015543053
7341026533
oct117007611
942870336
1020713353
1110768281
126b2aa89
1343a302b
142a72853
151c42453
hex13c0f89

20713353 has 8 divisors (see below), whose sum is σ = 27717216. Its totient is φ = 13759200.

The previous prime is 20713321. The next prime is 20713369. The reversal of 20713353 is 35331702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20713353 - 25 = 20713321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20713373) 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, 11443 + ... + 13128.

It is an arithmetic number, because the mean of its divisors is an integer number (3464652).

Almost surely, 220713353 is an apocalyptic number.

It is an amenable number.

20713353 is a deficient number, since it is larger than the sum of its proper divisors (7003863).

20713353 is a wasteful number, since it uses less digits than its factorization.

20713353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24855.

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 20713353 is about 4551.1924810977. The cubic root of 20713353 is about 274.6313650222.

The spelling of 20713353 in words is "twenty million, seven hundred thirteen thousand, three hundred fifty-three".

Divisors: 1 3 281 843 24571 73713 6904451 20713353