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152141531 = 198007449
BaseRepresentation
bin10010001000101…
…11111011011011
3101121021120221112
421010113323123
5302422012111
623032530535
73525116213
oct1104277333
9347246845
10152141531
1178975203
1242b50a4b
132569b899
14162c5243
15d553e8b
hex9117edb

152141531 has 4 divisors (see below), whose sum is σ = 160149000. Its totient is φ = 144134064.

The previous prime is 152141519. The next prime is 152141543. The reversal of 152141531 is 135141251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135141251 = 719305893.

It is an interprime number because it is at equal distance from previous prime (152141519) and next prime (152141543).

It is a cyclic number.

It is not a de Polignac number, because 152141531 - 26 = 152141467 is a prime.

It is a super-2 number, since 2×1521415312 = 46294090910047922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 152141497 and 152141506.

It is not an unprimeable number, because it can be changed into a prime (152141501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4003706 + ... + 4003743.

It is an arithmetic number, because the mean of its divisors is an integer number (40037250).

Almost surely, 2152141531 is an apocalyptic number.

152141531 is a deficient number, since it is larger than the sum of its proper divisors (8007469).

152141531 is an equidigital number, since it uses as much as digits as its factorization.

152141531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8007468.

The product of its digits is 600, while the sum is 23.

The square root of 152141531 is about 12334.5665104210. The cubic root of 152141531 is about 533.8459193925.

Adding to 152141531 its reverse (135141251), we get a palindrome (287282782).

The spelling of 152141531 in words is "one hundred fifty-two million, one hundred forty-one thousand, five hundred thirty-one".

Divisors: 1 19 8007449 152141531