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152440245 = 3351129187
BaseRepresentation
bin10010001011000…
…00110110110101
3101121211202201000
421011200312311
5303011041440
623043153513
73530502126
oct1105406665
9347752630
10152440245
1179059681
1243075899
1325774839
141636204d
15d5b2730
hex9160db5

152440245 has 16 divisors (see below), whose sum is σ = 271005120. Its totient is φ = 81301392.

The previous prime is 152440231. The next prime is 152440271. The reversal of 152440245 is 542044251.

It is not a de Polignac number, because 152440245 - 24 = 152440229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 564459 + ... + 564728.

It is an arithmetic number, because the mean of its divisors is an integer number (16937820).

Almost surely, 2152440245 is an apocalyptic number.

152440245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

152440245 is a deficient number, since it is larger than the sum of its proper divisors (118564875).

152440245 is a wasteful number, since it uses less digits than its factorization.

152440245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129201 (or 1129195 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 152440245 is about 12346.6693889486. The cubic root of 152440245 is about 534.1950745439.

Adding to 152440245 its reverse (542044251), we get a palindrome (694484496).

The spelling of 152440245 in words is "one hundred fifty-two million, four hundred forty thousand, two hundred forty-five".

Divisors: 1 3 5 9 15 27 45 135 1129187 3387561 5645935 10162683 16937805 30488049 50813415 152440245