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152015789 = 198000831
BaseRepresentation
bin10010000111110…
…01001110101101
3101121001012110102
421003321032231
5302404001124
623030120445
73524053502
oct1103711655
9347035412
10152015789
1178899792
1242ab0125
1325656593
14162914a9
15d52baae
hex90f93ad

152015789 has 4 divisors (see below), whose sum is σ = 160016640. Its totient is φ = 144014940.

The previous prime is 152015783. The next prime is 152015791. The reversal of 152015789 is 987510251.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-152015789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152015783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4000397 + ... + 4000434.

It is an arithmetic number, because the mean of its divisors is an integer number (40004160).

Almost surely, 2152015789 is an apocalyptic number.

152015789 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

152015789 is a deficient number, since it is larger than the sum of its proper divisors (8000851).

152015789 is an equidigital number, since it uses as much as digits as its factorization.

152015789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8000850.

The product of its (nonzero) digits is 25200, while the sum is 38.

The square root of 152015789 is about 12329.4683178148. The cubic root of 152015789 is about 533.6988077860.

The spelling of 152015789 in words is "one hundred fifty-two million, fifteen thousand, seven hundred eighty-nine".

Divisors: 1 19 8000831 152015789