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152104391 = 298236373
BaseRepresentation
bin10010001000011…
…10110111000111
3101121012200222222
421010032313013
5302414320031
623032042555
73524603015
oct1104166707
9347180888
10152104391
117894a30a
1242b3345b
13256879ca
14162b58b5
15d547e7b
hex910edc7

152104391 has 8 divisors (see below), whose sum is σ = 157565280. Its totient is φ = 146657952.

The previous prime is 152104369. The next prime is 152104397. The reversal of 152104391 is 193401251.

152104391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-152104391 is a prime.

It is a super-2 number, since 2×1521043912 = 46271491522961762, which contains 22 as substring.

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 152104391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152104397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20681 + ... + 27053.

It is an arithmetic number, because the mean of its divisors is an integer number (19695660).

Almost surely, 2152104391 is an apocalyptic number.

152104391 is a deficient number, since it is larger than the sum of its proper divisors (5460889).

152104391 is an equidigital number, since it uses as much as digits as its factorization.

152104391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7225.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 152104391 is about 12333.0608933873. The cubic root of 152104391 is about 533.8024759599.

The spelling of 152104391 in words is "one hundred fifty-two million, one hundred four thousand, three hundred ninety-one".

Divisors: 1 29 823 6373 23867 184817 5244979 152104391