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520297242 = 23314576121
BaseRepresentation
bin11111000000110…
…001101100011010
31100021000211122020
4133000301230122
52031144002432
6123343435310
715615311403
oct3700615432
91307024566
10520297242
11247770023
121262b5b36
1383a408ba
144d15a9aa
1530a2722c
hex1f031b1a

520297242 has 32 divisors (see below), whose sum is σ = 1076688384. Its totient is φ = 167443200.

The previous prime is 520297231. The next prime is 520297247. The reversal of 520297242 is 242792025.

It is not an unprimeable number, because it can be changed into a prime (520297247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81942 + ... + 88062.

It is an arithmetic number, because the mean of its divisors is an integer number (33646512).

Almost surely, 2520297242 is an apocalyptic number.

520297242 is an abundant number, since it is smaller than the sum of its proper divisors (556391142).

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

520297242 is a wasteful number, since it uses less digits than its factorization.

520297242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6614.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 520297242 is about 22810.0250328666. The cubic root of 520297242 is about 804.2983441433.

The spelling of 520297242 in words is "five hundred twenty million, two hundred ninety-seven thousand, two hundred forty-two".

Divisors: 1 2 3 6 31 62 93 186 457 914 1371 2742 6121 12242 14167 18363 28334 36726 42501 85002 189751 379502 569253 1138506 2797297 5594594 8391891 16783782 86716207 173432414 260148621 520297242