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152198709 = 3133902531
BaseRepresentation
bin10010001001001…
…01111000110101
3101121101111101020
421010211320311
5302430324314
623034051353
73525445005
oct1104457065
9347344336
10152198709
1178a04163
1242b79b59
13256bb910
14162dc005
15d565da9
hex9125e35

152198709 has 8 divisors (see below), whose sum is σ = 218541792. Its totient is φ = 93660720.

The previous prime is 152198687. The next prime is 152198729. The reversal of 152198709 is 907891251.

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

It is not a de Polignac number, because 152198709 - 27 = 152198581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152198729) 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, 1951227 + ... + 1951304.

It is an arithmetic number, because the mean of its divisors is an integer number (27317724).

Almost surely, 2152198709 is an apocalyptic number.

It is an amenable number.

152198709 is a deficient number, since it is larger than the sum of its proper divisors (66343083).

152198709 is a wasteful number, since it uses less digits than its factorization.

152198709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3902547.

The product of its (nonzero) digits is 45360, while the sum is 42.

The square root of 152198709 is about 12336.8840879697. The cubic root of 152198709 is about 533.9127878727.

The spelling of 152198709 in words is "one hundred fifty-two million, one hundred ninety-eight thousand, seven hundred nine".

Divisors: 1 3 13 39 3902531 11707593 50732903 152198709