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149158429 = 721308347
BaseRepresentation
bin10001110001111…
…11101000011101
3101101200000220021
420320333220131
5301141032204
622444552141
73460553140
oct1070775035
9341600807
10149158429
1177217a32
1241b52651
1324b95b34
1415b4a057
15d165154
hex8e3fa1d

149158429 has 4 divisors (see below), whose sum is σ = 170466784. Its totient is φ = 127850076.

The previous prime is 149158423. The next prime is 149158439. The reversal of 149158429 is 924851941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 149158429 - 23 = 149158421 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 (149158421) 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, 10654167 + ... + 10654180.

It is an arithmetic number, because the mean of its divisors is an integer number (42616696).

Almost surely, 2149158429 is an apocalyptic number.

It is an amenable number.

149158429 is a deficient number, since it is larger than the sum of its proper divisors (21308355).

149158429 is an equidigital number, since it uses as much as digits as its factorization.

149158429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21308354.

The product of its digits is 103680, while the sum is 43.

The square root of 149158429 is about 12213.0433963038. The cubic root of 149158429 is about 530.3337508642. Note that the first 3 decimals are identical.

The spelling of 149158429 in words is "one hundred forty-nine million, one hundred fifty-eight thousand, four hundred twenty-nine".

Divisors: 1 7 21308347 149158429