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152315742 = 23191336103
BaseRepresentation
bin10010001010000…
…10011101011110
3101121121102220210
421011002131132
5302443100432
623040353250
73526443135
oct1105023536
9347542823
10152315742
1178a84087
1243015826
132572cc77
141632c91c
15d58a8cc
hex914275e

152315742 has 16 divisors (see below), whose sum is σ = 320664960. Its totient is φ = 48099672.

The previous prime is 152315731. The next prime is 152315747. The reversal of 152315742 is 247513251.

It is a super-2 number, since 2×1523157422 = 46400170522021128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152315747) 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 7 ways as a sum of consecutive naturals, for example, 667938 + ... + 668165.

It is an arithmetic number, because the mean of its divisors is an integer number (20041560).

Almost surely, 2152315742 is an apocalyptic number.

152315742 is an abundant number, since it is smaller than the sum of its proper divisors (168349218).

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

152315742 is a wasteful number, since it uses less digits than its factorization.

152315742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336127.

The product of its digits is 8400, while the sum is 30.

The square root of 152315742 is about 12341.6263920117. The cubic root of 152315742 is about 534.0496033261.

Adding to 152315742 its reverse (247513251), we get a palindrome (399828993).

The spelling of 152315742 in words is "one hundred fifty-two million, three hundred fifteen thousand, seven hundred forty-two".

Divisors: 1 2 3 6 19 38 57 114 1336103 2672206 4008309 8016618 25385957 50771914 76157871 152315742