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155000329 = 1161230999
BaseRepresentation
bin10010011110100…
…01111000001001
3101210122211110221
421033101320021
5304140002304
623214110041
73561324001
oct1117217011
9353584427
10155000329
117a548050
1243aab321
132615cb93
141682b001
15d91b054
hex93d1e09

155000329 has 8 divisors (see below), whose sum is σ = 171864000. Its totient is φ = 138598800.

The previous prime is 155000327. The next prime is 155000333. The reversal of 155000329 is 923000551.

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 155000329 - 21 = 155000327 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155000327) by changing a digit.

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, 114829 + ... + 116170.

It is an arithmetic number, because the mean of its divisors is an integer number (21483000).

Almost surely, 2155000329 is an apocalyptic number.

It is an amenable number.

155000329 is a deficient number, since it is larger than the sum of its proper divisors (16863671).

155000329 is a wasteful number, since it uses less digits than its factorization.

155000329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231071.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 155000329 is about 12449.9128109397. The cubic root of 155000329 is about 537.1689155554.

The spelling of 155000329 in words is "one hundred fifty-five million, three hundred twenty-nine", and thus it is an aban number.

Divisors: 1 11 61 671 230999 2540989 14090939 155000329