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152140557 = 350713519
BaseRepresentation
bin10010001000101…
…11101100001101
3101121021112121110
421010113230031
5302421444212
623032522233
73525113322
oct1104275415
9347245543
10152140557
11789744a8
1242b50379
132569b2ca
14162c4b49
15d553a3c
hex9117b0d

152140557 has 4 divisors (see below), whose sum is σ = 202854080. Its totient is φ = 101427036.

The previous prime is 152140553. The next prime is 152140589. The reversal of 152140557 is 755041251.

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, and also an emirpimes, since its reverse is a distinct semiprime: 755041251 = 3251680417.

It is not a de Polignac number, because 152140557 - 22 = 152140553 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 (152140553) 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 3 ways as a sum of consecutive naturals, for example, 25356757 + ... + 25356762.

It is an arithmetic number, because the mean of its divisors is an integer number (50713520).

Almost surely, 2152140557 is an apocalyptic number.

It is an amenable number.

152140557 is a deficient number, since it is larger than the sum of its proper divisors (50713523).

152140557 is an equidigital number, since it uses as much as digits as its factorization.

152140557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50713522.

The product of its (nonzero) digits is 7000, while the sum is 30.

The square root of 152140557 is about 12334.5270278191. The cubic root of 152140557 is about 533.8447801746.

The spelling of 152140557 in words is "one hundred fifty-two million, one hundred forty thousand, five hundred fifty-seven".

Divisors: 1 3 50713519 152140557