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620240488 = 23711075723
BaseRepresentation
bin100100111110000…
…001111001101000
31121020002110222221
4210332001321220
52232240143423
6141313523424
721240646210
oct4476017150
91536073887
10620240488
1129912294a
12153873574
139b66460a
145c535240
15396b9e5d
hex24f81e68

620240488 has 16 divisors (see below), whose sum is σ = 1329086880. Its totient is φ = 265817328.

The previous prime is 620240477. The next prime is 620240501. The reversal of 620240488 is 884042026.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5537806 + ... + 5537917.

It is an arithmetic number, because the mean of its divisors is an integer number (83067930).

Almost surely, 2620240488 is an apocalyptic number.

It is an amenable number.

620240488 is an abundant number, since it is smaller than the sum of its proper divisors (708846392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620240488 is a wasteful number, since it uses less digits than its factorization.

620240488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11075736 (or 11075732 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 620240488 is about 24904.6278430335. The cubic root of 620240488 is about 852.8121338476.

The spelling of 620240488 in words is "six hundred twenty million, two hundred forty thousand, four hundred eighty-eight".

Divisors: 1 2 4 7 8 14 28 56 11075723 22151446 44302892 77530061 88605784 155060122 310120244 620240488