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152315242 = 2191398731
BaseRepresentation
bin10010001010000…
…10010101101010
3101121121102020021
421011002111222
5302443041432
623040351054
73526441522
oct1105022552
9347542207
10152315242
1178a83772
124301548a
132572c981
141632c682
15d58a697
hex914256a

152315242 has 8 divisors (see below), whose sum is σ = 229669632. Its totient is φ = 75758700.

The previous prime is 152315161. The next prime is 152315243. The reversal of 152315242 is 242513251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (152315243) 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 3 ways as a sum of consecutive naturals, for example, 198984 + ... + 199747.

It is an arithmetic number, because the mean of its divisors is an integer number (28708704).

Almost surely, 2152315242 is an apocalyptic number.

152315242 is a deficient number, since it is larger than the sum of its proper divisors (77354390).

152315242 is a wasteful number, since it uses less digits than its factorization.

152315242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398924.

The product of its digits is 2400, while the sum is 25.

The square root of 152315242 is about 12341.6061353456. The cubic root of 152315242 is about 534.0490189586.

Adding to 152315242 its reverse (242513251), we get a palindrome (394828493).

The spelling of 152315242 in words is "one hundred fifty-two million, three hundred fifteen thousand, two hundred forty-two".

Divisors: 1 2 191 382 398731 797462 76157621 152315242