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149184023 = 253958757
BaseRepresentation
bin10001110010001…
…01111000010111
3101101201100000012
420321011320113
5301142342043
622445310435
73461020562
oct1071057027
9341640005
10149184023
117723518a
1241b6541b
1324ba4691
1415b554d9
15d16ca18
hex8e45e17

149184023 has 4 divisors (see below), whose sum is σ = 149245320. Its totient is φ = 149122728.

The previous prime is 149184019. The next prime is 149184031. The reversal of 149184023 is 320481941.

It is a happy number.

149184023 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: 320481941 = 1324652457.

It is a cyclic number.

It is not a de Polignac number, because 149184023 - 22 = 149184019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149184073) 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, 26840 + ... + 31917.

It is an arithmetic number, because the mean of its divisors is an integer number (37311330).

Almost surely, 2149184023 is an apocalyptic number.

149184023 is a deficient number, since it is larger than the sum of its proper divisors (61297).

149184023 is an equidigital number, since it uses as much as digits as its factorization.

149184023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61296.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 149184023 is about 12214.0911655350. The cubic root of 149184023 is about 530.3640823398.

The spelling of 149184023 in words is "one hundred forty-nine million, one hundred eighty-four thousand, twenty-three".

Divisors: 1 2539 58757 149184023