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520240302 = 23228902239
BaseRepresentation
bin11111000000100…
…011110010101110
31100020220221112100
4133000203302232
52031140142202
6123342315530
715614653401
oct3700436256
91306827470
10520240302
1124773126a
12126288ba6
1383a209ca
144d143d38
1530a1541c
hex1f023cae

520240302 has 12 divisors (see below), whose sum is σ = 1127187360. Its totient is φ = 173413428.

The previous prime is 520240297. The next prime is 520240339. The reversal of 520240302 is 203042025.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 28902239 = 520240302 / (5 + 2 + 0 + 2 + 4 + 0 + 3 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14451102 + ... + 14451137.

It is an arithmetic number, because the mean of its divisors is an integer number (93932280).

Almost surely, 2520240302 is an apocalyptic number.

520240302 is an abundant number, since it is smaller than the sum of its proper divisors (606947058).

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

520240302 is a wasteful number, since it uses less digits than its factorization.

520240302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28902247 (or 28902244 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 520240302 is about 22808.7768633042. The cubic root of 520240302 is about 804.2690029547.

Adding to 520240302 its reverse (203042025), we get a palindrome (723282327).

The spelling of 520240302 in words is "five hundred twenty million, two hundred forty thousand, three hundred two".

Divisors: 1 2 3 6 9 18 28902239 57804478 86706717 173413434 260120151 520240302