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620451053 = 1793978731
BaseRepresentation
bin100100111110110…
…101010011101101
31121020111011211122
4210332311103231
52232313413203
6141322230325
721242514125
oct4476652355
91536434748
10620451053
11299257072
121539553a5
139b709401
145c58bc85
153970c538
hex24fb54ed

620451053 has 8 divisors (see below), whose sum is σ = 625560480. Its totient is φ = 615360240.

The previous prime is 620451047. The next prime is 620451107. The reversal of 620451053 is 350154026.

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 620451053 - 210 = 620450029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620451043) 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, 66698 + ... + 75428.

It is an arithmetic number, because the mean of its divisors is an integer number (78195060).

Almost surely, 2620451053 is an apocalyptic number.

It is an amenable number.

620451053 is a deficient number, since it is larger than the sum of its proper divisors (5109427).

620451053 is a wasteful number, since it uses less digits than its factorization.

620451053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9307.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 620451053 is about 24908.8549114567. The cubic root of 620451053 is about 852.9086297892.

The spelling of 620451053 in words is "six hundred twenty million, four hundred fifty-one thousand, fifty-three".

Divisors: 1 179 397 8731 71063 1562849 3466207 620451053