Search a number
-
+
149250667 = 178779451
BaseRepresentation
bin10001110010101…
…10001001101011
3101101211201102111
420321112021223
5301202010132
622450543151
73461416066
oct1071261153
9341751374
10149250667
1177280265
1241b97ab7
1324bc8b07
1415b718dd
15d182647
hex8e5626b

149250667 has 4 divisors (see below), whose sum is σ = 158030136. Its totient is φ = 140471200.

The previous prime is 149250649. The next prime is 149250691. The reversal of 149250667 is 766052941.

149250667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 766052941 = 977897453.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-149250667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149250697) 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, 4389709 + ... + 4389742.

It is an arithmetic number, because the mean of its divisors is an integer number (39507534).

Almost surely, 2149250667 is an apocalyptic number.

149250667 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

149250667 is a deficient number, since it is larger than the sum of its proper divisors (8779469).

149250667 is an equidigital number, since it uses as much as digits as its factorization.

149250667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8779468.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 149250667 is about 12216.8190213328. The cubic root of 149250667 is about 530.4430459385.

The spelling of 149250667 in words is "one hundred forty-nine million, two hundred fifty thousand, six hundred sixty-seven".

Divisors: 1 17 8779451 149250667