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150118531 = 831979181
BaseRepresentation
bin10001111001010…
…10000010000011
3101110110210220121
420330222002003
5301412243111
622521321111
73501662233
oct1074520203
9343423817
10150118531
1177813302
1242336197
1325140b44
1415d19cc3
15d2a4871
hex8f2a083

150118531 has 8 divisors (see below), whose sum is σ = 152715024. Its totient is φ = 147540960.

The previous prime is 150118513. The next prime is 150118567. The reversal of 150118531 is 135811051.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-150118531 is a prime.

It is a super-2 number, since 2×1501185312 = 45071146699195922, 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 = 150118496 and 150118505.

It is not an unprimeable number, because it can be changed into a prime (150118571) 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, 11761 + ... + 20941.

It is an arithmetic number, because the mean of its divisors is an integer number (19089378).

Almost surely, 2150118531 is an apocalyptic number.

150118531 is a deficient number, since it is larger than the sum of its proper divisors (2596493).

150118531 is an equidigital number, since it uses as much as digits as its factorization.

150118531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9461.

The product of its (nonzero) digits is 600, while the sum is 25.

The square root of 150118531 is about 12252.2867661510. The cubic root of 150118531 is about 531.4692010578.

Adding to 150118531 its reverse (135811051), we get a palindrome (285929582).

The spelling of 150118531 in words is "one hundred fifty million, one hundred eighteen thousand, five hundred thirty-one".

Divisors: 1 83 197 9181 16351 762023 1808657 150118531