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620123396 = 22155030849
BaseRepresentation
bin100100111101100…
…101010100000100
31121012212112101012
4210331211110010
52232222422041
6141311221352
721236650634
oct4475452404
91535775335
10620123396
11299052982
12153817858
139b623229
145c5046c4
15396953eb
hex24f65504

620123396 has 6 divisors (see below), whose sum is σ = 1085215950. Its totient is φ = 310061696.

The previous prime is 620123389. The next prime is 620123407. The reversal of 620123396 is 693321026.

It can be written as a sum of positive squares in only one way, i.e., 582546496 + 37576900 = 24136^2 + 6130^2 .

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 as a sum of consecutive naturals, namely, 77515421 + ... + 77515428.

It is an arithmetic number, because the mean of its divisors is an integer number (180869325).

Almost surely, 2620123396 is an apocalyptic number.

It is an amenable number.

620123396 is a deficient number, since it is larger than the sum of its proper divisors (465092554).

620123396 is a wasteful number, since it uses less digits than its factorization.

620123396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155030853 (or 155030851 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 620123396 is about 24902.2769240084. The cubic root of 620123396 is about 852.7584644699.

The spelling of 620123396 in words is "six hundred twenty million, one hundred twenty-three thousand, three hundred ninety-six".

Divisors: 1 2 4 155030849 310061698 620123396