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150030531 = 3272381437
BaseRepresentation
bin10001111000101…
…00100011000011
3101110022100012100
420330110203003
5301401434111
622515401443
73501144540
oct1074244303
9343270170
10150030531
1177763182
12422b3283
132510ca81
1415cd5bc7
15d288756
hex8f148c3

150030531 has 12 divisors (see below), whose sum is σ = 247669552. Its totient is φ = 85731696.

The previous prime is 150030527. The next prime is 150030539. The reversal of 150030531 is 135030051.

It is a happy number.

It is not a de Polignac number, because 150030531 - 22 = 150030527 is a prime.

It is a super-2 number, since 2×1500305312 = 45018320464283922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150030539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1190656 + ... + 1190781.

Almost surely, 2150030531 is an apocalyptic number.

150030531 is a deficient number, since it is larger than the sum of its proper divisors (97639021).

150030531 is a wasteful number, since it uses less digits than its factorization.

150030531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2381450 (or 2381447 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 150030531 is about 12248.6950733537. The cubic root of 150030531 is about 531.3653310666.

Adding to 150030531 its reverse (135030051), we get a palindrome (285060582).

The spelling of 150030531 in words is "one hundred fifty million, thirty thousand, five hundred thirty-one".

Divisors: 1 3 7 9 21 63 2381437 7144311 16670059 21432933 50010177 150030531