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621093 = 31122959
BaseRepresentation
bin10010111101000100101
31011112222110
42113220211
5124333333
621151233
75164524
oct2275045
91145873
10621093
11394700
1225b519
13189915
141224bb
15c4063
hex97a25

621093 has 24 divisors (see below), whose sum is σ = 957600. Its totient is φ = 357280.

The previous prime is 621083. The next prime is 621097. The reversal of 621093 is 390126.

621093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 621093 - 26 = 621029 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (621097) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10498 + ... + 10556.

It is an arithmetic number, because the mean of its divisors is an integer number (39900).

2621093 is an apocalyptic number.

It is an amenable number.

621093 is a deficient number, since it is larger than the sum of its proper divisors (336507).

621093 is a wasteful number, since it uses less digits than its factorization.

621093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 621093 is about 788.0945374763. The cubic root of 621093 is about 85.3202681142.

The spelling of 621093 in words is "six hundred twenty-one thousand, ninety-three".

Divisors: 1 3 11 29 33 59 87 121 177 319 363 649 957 1711 1947 3509 5133 7139 10527 18821 21417 56463 207031 621093