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152430440 = 2353810761
BaseRepresentation
bin10010001010111…
…10011101101000
3101121211021020212
421011132131220
5303010233230
623043040252
73530431421
oct1105363550
9347737225
10152430440
1179052278
1243070088
1325770236
141635c648
15d5ae895
hex915e768

152430440 has 16 divisors (see below), whose sum is σ = 342968580. Its totient is φ = 60972160.

The previous prime is 152430437. The next prime is 152430451. The reversal of 152430440 is 44034251.

152430440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 152423716 + 6724 = 12346^2 + 82^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1905341 + ... + 1905420.

Almost surely, 2152430440 is an apocalyptic number.

152430440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152430440 is an abundant number, since it is smaller than the sum of its proper divisors (190538140).

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

152430440 is a wasteful number, since it uses less digits than its factorization.

152430440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810772 (or 3810768 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 152430440 is about 12346.2723119167. The cubic root of 152430440 is about 534.1836211052.

Adding to 152430440 its reverse (44034251), we get a palindrome (196464691).

The spelling of 152430440 in words is "one hundred fifty-two million, four hundred thirty thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 3810761 7621522 15243044 19053805 30486088 38107610 76215220 152430440