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153442131 = 3234173743
BaseRepresentation
bin10010010010101…
…01011101010011
3101200201200000220
421021111131103
5303240122011
623120444123
73542144103
oct1111253523
9350650026
10153442131
1179683387
1243479643
1325a3587b
1416543203
15d70e506
hex9255753

153442131 has 32 divisors (see below), whose sum is σ = 221985792. Its totient is φ = 94026240.

The previous prime is 153442117. The next prime is 153442139. The reversal of 153442131 is 131244351.

It is a happy number.

153442131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 153442131 - 25 = 153442099 is a prime.

It is a super-2 number, since 2×1534421312 = 47088975131642322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (153442139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206146 + ... + 206888.

It is an arithmetic number, because the mean of its divisors is an integer number (6937056).

Almost surely, 2153442131 is an apocalyptic number.

153442131 is a deficient number, since it is larger than the sum of its proper divisors (68543661).

153442131 is a wasteful number, since it uses less digits than its factorization.

153442131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883.

The product of its digits is 1440, while the sum is 24.

The square root of 153442131 is about 12387.1760704367. The cubic root of 153442131 is about 535.3628202433.

Adding to 153442131 its reverse (131244351), we get a palindrome (284686482).

The spelling of 153442131 in words is "one hundred fifty-three million, four hundred forty-two thousand, one hundred thirty-one".

Divisors: 1 3 23 41 69 73 123 219 743 943 1679 2229 2829 2993 5037 8979 17089 30463 51267 54239 68839 91389 162717 206517 700649 1247497 2101947 2223799 3742491 6671397 51147377 153442131