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150450031 = 719209249
BaseRepresentation
bin10001111011110…
…10111101101111
3101111002122122101
420331322331233
5302003400111
622532355531
73504542554
oct1075727557
9344078571
10150450031
1177a1a376
1242475ba7
13252289b4
1415da4a2b
15d31cbc1
hex8f7af6f

150450031 has 4 divisors (see below), whose sum is σ = 150660000. Its totient is φ = 150240064.

The previous prime is 150450019. The next prime is 150450067. The reversal of 150450031 is 130054051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130054051 = 245952889.

It is a cyclic number.

It is not a de Polignac number, because 150450031 - 213 = 150441839 is a prime.

It is a super-2 number, since 2×1504500312 = 45270423655801922, 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 = 150449990 and 150450008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150450631) 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, 103906 + ... + 105343.

It is an arithmetic number, because the mean of its divisors is an integer number (37665000).

Almost surely, 2150450031 is an apocalyptic number.

150450031 is a deficient number, since it is larger than the sum of its proper divisors (209969).

150450031 is an equidigital number, since it uses as much as digits as its factorization.

150450031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209968.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 150450031 is about 12265.8073929114. The cubic root of 150450031 is about 531.8601199601.

The spelling of 150450031 in words is "one hundred fifty million, four hundred fifty thousand, thirty-one".

Divisors: 1 719 209249 150450031