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152742 = 2325457
BaseRepresentation
bin100101010010100110
321202112010
4211102212
514341432
63135050
71204212
oct452246
9252463
10152742
11a4837
1274486
13546a5
143d942
15303cc
hex254a6

152742 has 8 divisors (see below), whose sum is σ = 305496. Its totient is φ = 50912.

The previous prime is 152729. The next prime is 152753. The reversal of 152742 is 247251.

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

152742 is an admirable number.

It is a congruent number.

It is an unprimeable number.

152742 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12723 + ... + 12734.

It is an arithmetic number, because the mean of its divisors is an integer number (38187).

2152742 is an apocalyptic number.

152742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

152742 is a wasteful number, since it uses less digits than its factorization.

152742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25462.

The product of its digits is 560, while the sum is 21.

The square root of 152742 is about 390.8222102184. The cubic root of 152742 is about 53.4547321396.

Adding to 152742 its reverse (247251), we get a palindrome (399993).

The spelling of 152742 in words is "one hundred fifty-two thousand, seven hundred forty-two".

Divisors: 1 2 3 6 25457 50914 76371 152742