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155340325 = 527887659
BaseRepresentation
bin10010100001001…
…00111000100101
3101211022002212101
421100210320211
5304231342300
623225252101
73564241150
oct1120447045
9354262771
10155340325
117a75a538
1244034031
132624b86a
14168b8c97
15d986b6a
hex9424e25

155340325 has 12 divisors (see below), whose sum is σ = 220139680. Its totient is φ = 106518960.

The previous prime is 155340313. The next prime is 155340329. The reversal of 155340325 is 523043551.

It is not a de Polignac number, because 155340325 - 25 = 155340293 is a prime.

It is a super-2 number, since 2×1553403252 = 48261233142211250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155340293 and 155340302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155340329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 443655 + ... + 444004.

Almost surely, 2155340325 is an apocalyptic number.

It is an amenable number.

155340325 is a deficient number, since it is larger than the sum of its proper divisors (64799355).

155340325 is an equidigital number, since it uses as much as digits as its factorization.

155340325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887676 (or 887671 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 155340325 is about 12463.5598847199. The cubic root of 155340325 is about 537.5613919421.

Adding to 155340325 its reverse (523043551), we get a palindrome (678383876).

The spelling of 155340325 in words is "one hundred fifty-five million, three hundred forty thousand, three hundred twenty-five".

Divisors: 1 5 7 25 35 175 887659 4438295 6213613 22191475 31068065 155340325