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152145551 = 314907921
BaseRepresentation
bin10010001000110…
…00111010001111
3101121021210110102
421010120322033
5302422124201
623033001315
73525134015
oct1104307217
9347253412
10152145551
1178978228
1242b5323b
13256a066c
14162c68b5
15d55526b
hex9118e8f

152145551 has 4 divisors (see below), whose sum is σ = 157053504. Its totient is φ = 147237600.

The previous prime is 152145527. The next prime is 152145569. The reversal of 152145551 is 155541251.

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

It is not a de Polignac number, because 152145551 - 214 = 152129167 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 (152145151) 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, 2453930 + ... + 2453991.

It is an arithmetic number, because the mean of its divisors is an integer number (39263376).

Almost surely, 2152145551 is an apocalyptic number.

152145551 is a deficient number, since it is larger than the sum of its proper divisors (4907953).

152145551 is an equidigital number, since it uses as much as digits as its factorization.

152145551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4907952.

The product of its digits is 5000, while the sum is 29.

The square root of 152145551 is about 12334.7294660240. The cubic root of 152145551 is about 533.8506212462.

The spelling of 152145551 in words is "one hundred fifty-two million, one hundred forty-five thousand, five hundred fifty-one".

Divisors: 1 31 4907921 152145551