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152120015 = 530424003
BaseRepresentation
bin10010001000100…
…10101011001111
3101121020111102122
421010102223033
5302420320030
623032243155
73524666405
oct1104225317
9347214378
10152120015
1178960023
1242b404bb
1325691b58
14162bb475
15d54c8e5
hex9112acf

152120015 has 4 divisors (see below), whose sum is σ = 182544024. Its totient is φ = 121696008.

The previous prime is 152120009. The next prime is 152120027. The reversal of 152120015 is 510021251.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 152120015 - 224 = 135342799 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 152119975 and 152120002.

It is a congruent number.

It is an unprimeable number.

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, 15211997 + ... + 15212006.

It is an arithmetic number, because the mean of its divisors is an integer number (45636006).

Almost surely, 2152120015 is an apocalyptic number.

152120015 is a deficient number, since it is larger than the sum of its proper divisors (30424009).

152120015 is an equidigital number, since it uses as much as digits as its factorization.

152120015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30424008.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 152120015 is about 12333.6942965196. The cubic root of 152120015 is about 533.8207525402.

Adding to 152120015 its reverse (510021251), we get a palindrome (662141266).

The spelling of 152120015 in words is "one hundred fifty-two million, one hundred twenty thousand, fifteen".

Divisors: 1 5 30424003 152120015