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342130525 = 52112176653
BaseRepresentation
bin10100011001000…
…111111101011101
3212211210000211221
4110121013331131
51200041134100
653541013341
711323030042
oct2431077535
9784700757
10342130525
1116613a800
12966b4251
1355b5c2c9
143361d1c9
152008201a
hex14647f5d

342130525 has 36 divisors (see below), whose sum is σ = 493819956. Its totient is φ = 234150400.

The previous prime is 342130519. The next prime is 342130553. The reversal of 342130525 is 525031243.

It can be written as a sum of positive squares in 6 ways, for example, as 31595641 + 310534884 = 5621^2 + 17622^2 .

It is not a de Polignac number, because 342130525 - 25 = 342130493 is a prime.

It is a super-2 number, since 2×3421305252 = 234106592273551250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 342130525.

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 35 ways as a sum of consecutive naturals, for example, 48099 + ... + 54751.

It is an arithmetic number, because the mean of its divisors is an integer number (13717221).

Almost surely, 2342130525 is an apocalyptic number.

It is an amenable number.

342130525 is a deficient number, since it is larger than the sum of its proper divisors (151689431).

342130525 is a wasteful number, since it uses less digits than its factorization.

342130525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6702 (or 6686 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 342130525 is about 18496.7706640916. The cubic root of 342130525 is about 699.4080199201.

Adding to 342130525 its reverse (525031243), we get a palindrome (867161768).

The spelling of 342130525 in words is "three hundred forty-two million, one hundred thirty thousand, five hundred twenty-five".

Divisors: 1 5 11 17 25 55 85 121 187 275 425 605 935 2057 3025 4675 6653 10285 33265 51425 73183 113101 166325 365915 565505 805013 1244111 1829575 2827525 4025065 6220555 13685221 20125325 31102775 68426105 342130525