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151027427 = 401376627
BaseRepresentation
bin10010000000001…
…11111011100011
3101112011222200102
421000013323203
5302130334202
622553013015
73512466125
oct1100077343
9345158612
10151027427
1178284161
12426b416b
132539b755
14160b5215
15d3d3d02
hex9007ee3

151027427 has 4 divisors (see below), whose sum is σ = 151404456. Its totient is φ = 150650400.

The previous prime is 151027423. The next prime is 151027463. The reversal of 151027427 is 724720151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 724720151 = 4316853957.

It is a cyclic number.

It is not a de Polignac number, because 151027427 - 22 = 151027423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 151027427.

It is not an unprimeable number, because it can be changed into a prime (151027423) 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, 187913 + ... + 188714.

It is an arithmetic number, because the mean of its divisors is an integer number (37851114).

Almost surely, 2151027427 is an apocalyptic number.

151027427 is a deficient number, since it is larger than the sum of its proper divisors (377029).

151027427 is an equidigital number, since it uses as much as digits as its factorization.

151027427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377028.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 151027427 is about 12289.3216655762. The cubic root of 151027427 is about 532.5396410055.

Adding to 151027427 its reverse (724720151), we get a palindrome (875747578).

The spelling of 151027427 in words is "one hundred fifty-one million, twenty-seven thousand, four hundred twenty-seven".

Divisors: 1 401 376627 151027427