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152630290 = 2541372269
BaseRepresentation
bin10010001100011…
…11010000010010
3101122012102101201
421012033100102
5303033132130
623051221414
73532223161
oct1106172022
9348172351
10152630290
117917943a
124314786a
13258101a7
14163b13d8
15d5edbca
hex918f412

152630290 has 16 divisors (see below), whose sum is σ = 281436120. Its totient is φ = 59562880.

The previous prime is 152630279. The next prime is 152630297. The reversal of 152630290 is 92036251.

It can be written as a sum of positive squares in 4 ways, for example, as 132227001 + 20403289 = 11499^2 + 4517^2 .

It is not an unprimeable number, because it can be changed into a prime (152630297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185725 + ... + 186544.

Almost surely, 2152630290 is an apocalyptic number.

152630290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

152630290 is a deficient number, since it is larger than the sum of its proper divisors (128805830).

152630290 is a wasteful number, since it uses less digits than its factorization.

152630290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372317.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 152630290 is about 12354.3631968629. The cubic root of 152630290 is about 534.4169733910.

The spelling of 152630290 in words is "one hundred fifty-two million, six hundred thirty thousand, two hundred ninety".

Divisors: 1 2 5 10 41 82 205 410 372269 744538 1861345 3722690 15263029 30526058 76315145 152630290