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149124629 = 178772037
BaseRepresentation
bin10001110001101…
…11011000010101
3101101121022112102
420320313120111
5301133442004
622444131445
73460352453
oct1070673025
9341538472
10149124629
11771a45a5
1241b36b85
1324b83634
1415b3b9d3
15d15a11e
hex8e37615

149124629 has 4 divisors (see below), whose sum is σ = 157896684. Its totient is φ = 140352576.

The previous prime is 149124623. The next prime is 149124643. The reversal of 149124629 is 926421941.

149124629 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: 926421941 = 1733534577.

It can be written as a sum of positive squares in 2 ways, for example, as 123165604 + 25959025 = 11098^2 + 5095^2 .

It is a cyclic number.

It is not a de Polignac number, because 149124629 - 216 = 149059093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 149124592 and 149124601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149124623) 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, 4386002 + ... + 4386035.

It is an arithmetic number, because the mean of its divisors is an integer number (39474171).

Almost surely, 2149124629 is an apocalyptic number.

It is an amenable number.

149124629 is a deficient number, since it is larger than the sum of its proper divisors (8772055).

149124629 is an equidigital number, since it uses as much as digits as its factorization.

149124629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8772054.

The product of its digits is 31104, while the sum is 38.

The square root of 149124629 is about 12211.6595514287. The cubic root of 149124629 is about 530.2936891324.

The spelling of 149124629 in words is "one hundred forty-nine million, one hundred twenty-four thousand, six hundred twenty-nine".

Divisors: 1 17 8772037 149124629