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20682310 = 2511188021
BaseRepresentation
bin100111011100…
…1011001000110
31102220202210111
41032321121012
520243313220
62015143234
7340540165
oct116713106
942822714
1020682310
1110746a20
126b14b1a
134391b6c
142a653dc
151c3815a
hex13b9646

20682310 has 16 divisors (see below), whose sum is σ = 40612752. Its totient is φ = 7520800.

The previous prime is 20682293. The next prime is 20682329. The reversal of 20682310 is 1328602.

It is a super-2 number, since 2×206823102 = 855515893872200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93901 + ... + 94120.

It is an arithmetic number, because the mean of its divisors is an integer number (2538297).

Almost surely, 220682310 is an apocalyptic number.

20682310 is a deficient number, since it is larger than the sum of its proper divisors (19930442).

20682310 is a wasteful number, since it uses less digits than its factorization.

20682310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188039.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 20682310 is about 4547.7807774782. The cubic root of 20682310 is about 274.4941002024.

The spelling of 20682310 in words is "twenty million, six hundred eighty-two thousand, three hundred ten".

Divisors: 1 2 5 10 11 22 55 110 188021 376042 940105 1880210 2068231 4136462 10341155 20682310