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152404250 = 253609617
BaseRepresentation
bin10010001010110…
…00000100011010
3101121202221022212
421011120010122
5303003414000
623042315122
73530262155
oct1105300432
9347687285
10152404250
1179034629
1243058aa2
132576133b
1416352c9c
15d5a6c35
hex915811a

152404250 has 16 divisors (see below), whose sum is σ = 285301224. Its totient is φ = 60961600.

The previous prime is 152404249. The next prime is 152404261. The reversal of 152404250 is 52404251.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 71961289 + 80442961 = 8483^2 + 8969^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304559 + ... + 305058.

Almost surely, 2152404250 is an apocalyptic number.

152404250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

152404250 is a deficient number, since it is larger than the sum of its proper divisors (132896974).

152404250 is an equidigital number, since it uses as much as digits as its factorization.

152404250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609634 (or 609624 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 152404250 is about 12345.2116223255. The cubic root of 152404250 is about 534.1530255751.

Subtracting from 152404250 its reverse (52404251), we obtain a palindrome (99999999).

The spelling of 152404250 in words is "one hundred fifty-two million, four hundred four thousand, two hundred fifty".

Divisors: 1 2 5 10 25 50 125 250 609617 1219234 3048085 6096170 15240425 30480850 76202125 152404250