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620420050 = 25231571701
BaseRepresentation
bin100100111110101…
…101101111010010
31121020102121022101
4210332231233102
52232311420200
6141321431014
721242324545
oct4476555722
91536377271
10620420050
11299235848
1215393b46a
139b6c8273
145c58085c
153970326a
hex24fadbd2

620420050 has 48 divisors (see below), whose sum is σ = 1194994944. Its totient is φ = 239400000.

The previous prime is 620420029. The next prime is 620420063. The reversal of 620420050 is 50024026.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 884700 + ... + 885400.

It is an arithmetic number, because the mean of its divisors is an integer number (24895728).

Almost surely, 2620420050 is an apocalyptic number.

620420050 is a deficient number, since it is larger than the sum of its proper divisors (574574894).

620420050 is a wasteful number, since it uses less digits than its factorization.

620420050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315 (or 1310 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 620420050 is about 24908.2325747934. The cubic root of 620420050 is about 852.8944233682.

Adding to 620420050 its reverse (50024026), we get a palindrome (670444076).

The spelling of 620420050 in words is "six hundred twenty million, four hundred twenty thousand, fifty".

Divisors: 1 2 5 10 25 31 50 62 155 310 571 701 775 1142 1402 1550 2855 3505 5710 7010 14275 17525 17701 21731 28550 35050 35402 43462 88505 108655 177010 217310 400271 442525 543275 800542 885050 1086550 2001355 4002710 10006775 12408401 20013550 24816802 62042005 124084010 310210025 620420050