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149124238 = 2179714517
BaseRepresentation
bin10001110001101…
…11010010001110
3101101121021222221
420320313102032
5301133433423
622444125554
73460351354
oct1070672216
9341537887
10149124238
11771a427a
1241b368ba
1324b833c3
1415b3b7d4
15d159e5d
hex8e3748e

149124238 has 16 divisors (see below), whose sum is σ = 237140784. Its totient is φ = 70088320.

The previous prime is 149124233. The next prime is 149124251. The reversal of 149124238 is 832421941.

149124238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149124233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30756 + ... + 35272.

It is an arithmetic number, because the mean of its divisors is an integer number (14821299).

Almost surely, 2149124238 is an apocalyptic number.

149124238 is a deficient number, since it is larger than the sum of its proper divisors (88016546).

149124238 is a wasteful number, since it uses less digits than its factorization.

149124238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5507.

The product of its digits is 13824, while the sum is 34.

The square root of 149124238 is about 12211.6435421281. The cubic root of 149124238 is about 530.2932256610.

The spelling of 149124238 in words is "one hundred forty-nine million, one hundred twenty-four thousand, two hundred thirty-eight".

Divisors: 1 2 17 34 971 1942 4517 9034 16507 33014 76789 153578 4386007 8772014 74562119 149124238