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152127505 = 5157193793
BaseRepresentation
bin10010001000101…
…00100000010001
3101121020212201001
421010110200101
5302421040010
623032342001
73525030265
oct1104244021
9347225631
10152127505
1178965712
1242b44901
132569539a
14162c00a5
15d54ec3a
hex9114811

152127505 has 8 divisors (see below), whose sum is σ = 183716712. Its totient is φ = 120926208.

The previous prime is 152127491. The next prime is 152127551. The reversal of 152127505 is 505721251.

It can be written as a sum of positive squares in 4 ways, for example, as 20061441 + 132066064 = 4479^2 + 11492^2 .

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 152127505 - 215 = 152094737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96112 + ... + 97681.

It is an arithmetic number, because the mean of its divisors is an integer number (22964589).

Almost surely, 2152127505 is an apocalyptic number.

It is an amenable number.

152127505 is a deficient number, since it is larger than the sum of its proper divisors (31589207).

152127505 is a wasteful number, since it uses less digits than its factorization.

152127505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193955.

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 152127505 is about 12333.9979325440. The cubic root of 152127505 is about 533.8295137187.

Adding to 152127505 its reverse (505721251), we get a palindrome (657848756).

The spelling of 152127505 in words is "one hundred fifty-two million, one hundred twenty-seven thousand, five hundred five".

Divisors: 1 5 157 785 193793 968965 30425501 152127505