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151120505 = 531974971
BaseRepresentation
bin10010000000111…
…10101001111001
3101112100201100202
421000132221321
5302141324010
622555011545
73513334364
oct1100365171
9345321322
10151120505
1178338088
1242739bb5
1325401c23
14160db0db
15d4016a5
hex901ea79

151120505 has 8 divisors (see below), whose sum is σ = 187194624. Its totient is φ = 116996400.

The previous prime is 151120499. The next prime is 151120513. The reversal of 151120505 is 505021151.

It is a happy number.

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

It is not a de Polignac number, because 151120505 - 222 = 146926201 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 487331 + ... + 487640.

It is an arithmetic number, because the mean of its divisors is an integer number (23399328).

Almost surely, 2151120505 is an apocalyptic number.

It is an amenable number.

151120505 is a deficient number, since it is larger than the sum of its proper divisors (36074119).

151120505 is an equidigital number, since it uses as much as digits as its factorization.

151120505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975007.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 151120505 is about 12293.1080284849. The cubic root of 151120505 is about 532.6490196933.

Adding to 151120505 its reverse (505021151), we get a palindrome (656141656).

The spelling of 151120505 in words is "one hundred fifty-one million, one hundred twenty thousand, five hundred five".

Divisors: 1 5 31 155 974971 4874855 30224101 151120505