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10620993 = 38939779
BaseRepresentation
bin101000100001…
…000001000001
3201222121021010
4220201001001
510204332433
61015351133
7156163665
oct50410101
921877233
1010620993
115aa4789
1236824a9
13227b416
1415a68a5
15debe63
hexa21041

10620993 has 8 divisors (see below), whose sum is σ = 14320800. Its totient is φ = 7000928.

The previous prime is 10620991. The next prime is 10621001. The reversal of 10620993 is 39902601.

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

It is a cyclic number.

It is not a de Polignac number, because 10620993 - 21 = 10620991 is a prime.

It is a super-2 number, since 2×106209932 = 225610984612098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10620993.

It is not an unprimeable number, because it can be changed into a prime (10620991) 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, 19623 + ... + 20156.

It is an arithmetic number, because the mean of its divisors is an integer number (1790100).

Almost surely, 210620993 is an apocalyptic number.

It is an amenable number.

10620993 is a deficient number, since it is larger than the sum of its proper divisors (3699807).

10620993 is an equidigital number, since it uses as much as digits as its factorization.

10620993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39871.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 10620993 is about 3258.9864988981. The cubic root of 10620993 is about 219.8138439032.

The spelling of 10620993 in words is "ten million, six hundred twenty thousand, nine hundred ninety-three".

Divisors: 1 3 89 267 39779 119337 3540331 10620993