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150145031 = 877171203
BaseRepresentation
bin10001111001100…
…00100000000111
3101110112011021002
420330300200013
5301414120111
622522043515
73502132421
oct1074604007
9343464232
10150145031
1177831203
124234959b
132514cc1a
1415d25811
15d2ac63b
hex8f30807

150145031 has 4 divisors (see below), whose sum is σ = 150317112. Its totient is φ = 149972952.

The previous prime is 150145027. The next prime is 150145043. The reversal of 150145031 is 130541051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130541051 = 191683461.

It is a cyclic number.

It is not a de Polignac number, because 150145031 - 22 = 150145027 is a prime.

It is a super-2 number, since 2×1501450312 = 45087060667981922, 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 = 150144994 and 150145012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150141031) 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 3 ways as a sum of consecutive naturals, for example, 84725 + ... + 86478.

It is an arithmetic number, because the mean of its divisors is an integer number (37579278).

Almost surely, 2150145031 is an apocalyptic number.

150145031 is a deficient number, since it is larger than the sum of its proper divisors (172081).

150145031 is an equidigital number, since it uses as much as digits as its factorization.

150145031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172080.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 150145031 is about 12253.3681492070. The cubic root of 150145031 is about 531.5004721364.

Adding to 150145031 its reverse (130541051), we get a palindrome (280686082).

The spelling of 150145031 in words is "one hundred fifty million, one hundred forty-five thousand, thirty-one".

Divisors: 1 877 171203 150145031