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150212231 = 1313218747
BaseRepresentation
bin10001111010000…
…00111010000111
3101110122120102222
420331000322013
5301423242411
622523322555
73502532351
oct1075007207
9343576388
10150212231
1177877744
124238045b
13251746a0
1415d420d1
15d2c24db
hex8f40e87

150212231 has 8 divisors (see below), whose sum is σ = 161907984. Its totient is φ = 138536640.

The previous prime is 150212219. The next prime is 150212239. The reversal of 150212231 is 132212051.

It is a happy number.

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-150212231 is a prime.

It is a super-2 number, since 2×1502122312 = 45127428683994722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150212239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12800 + ... + 21546.

It is an arithmetic number, because the mean of its divisors is an integer number (20238498).

Almost surely, 2150212231 is an apocalyptic number.

150212231 is a deficient number, since it is larger than the sum of its proper divisors (11695753).

150212231 is a wasteful number, since it uses less digits than its factorization.

150212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10081.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 150212231 is about 12256.1099456557. The cubic root of 150212231 is about 531.5797543794.

Adding to 150212231 its reverse (132212051), we get a palindrome (282424282).

The spelling of 150212231 in words is "one hundred fifty million, two hundred twelve thousand, two hundred thirty-one".

Divisors: 1 13 1321 8747 17173 113711 11554787 150212231