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520214238 = 23429110731
BaseRepresentation
bin11111000000011…
…101011011011110
31100020212121210000
4133000131123132
52031133323423
6123341555130
715614514405
oct3700353336
91306777700
10520214238
11247713725
12126275aa6
1383a11b9b
144d13863c
1530a0c843
hex1f01d6de

520214238 has 40 divisors (see below), whose sum is σ = 1205871480. Its totient is φ = 167423760.

The previous prime is 520214171. The next prime is 520214251. The reversal of 520214238 is 832412025.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 50668 + ... + 60063.

It is an arithmetic number, because the mean of its divisors is an integer number (30146787).

Almost surely, 2520214238 is an apocalyptic number.

520214238 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

520214238 is an abundant number, since it is smaller than the sum of its proper divisors (685657242).

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

520214238 is a wasteful number, since it uses less digits than its factorization.

520214238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110774 (or 110765 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 520214238 is about 22808.2054971451. The cubic root of 520214238 is about 804.2555714582.

The spelling of 520214238 in words is "five hundred twenty million, two hundred fourteen thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 9 18 27 29 54 58 81 87 162 174 261 522 783 1566 2349 4698 110731 221462 332193 664386 996579 1993158 2989737 3211199 5979474 6422398 8969211 9633597 17938422 19267194 28900791 57801582 86702373 173404746 260107119 520214238