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520292145 = 3534686143
BaseRepresentation
bin11111000000110…
…000011100110001
31100021000120122110
4133000300130301
52031143322040
6123343355533
715615260502
oct3700603461
91307016573
10520292145
1124776720a
121262b2ba9
1383a3b499
144d158ba9
1530a25980
hex1f030731

520292145 has 8 divisors (see below), whose sum is σ = 832467456. Its totient is φ = 277489136.

The previous prime is 520292099. The next prime is 520292197. The reversal of 520292145 is 541292025.

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 520292145 - 26 = 520292081 is a prime.

It is a super-2 number, since 2×5202921452 = 541407832297402050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17343057 + ... + 17343086.

It is an arithmetic number, because the mean of its divisors is an integer number (104058432).

Almost surely, 2520292145 is an apocalyptic number.

It is an amenable number.

520292145 is a deficient number, since it is larger than the sum of its proper divisors (312175311).

520292145 is a wasteful number, since it uses less digits than its factorization.

520292145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34686151.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 520292145 is about 22809.9133054030. The cubic root of 520292145 is about 804.2957177458.

The spelling of 520292145 in words is "five hundred twenty million, two hundred ninety-two thousand, one hundred forty-five".

Divisors: 1 3 5 15 34686143 104058429 173430715 520292145