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149232747 = 3431279109
BaseRepresentation
bin10001110010100…
…01110001101011
3101101210210211210
420321101301223
5301200421442
622450324203
73461312616
oct1071216153
9341723753
10149232747
1177268854
1241b89663
1324bc0901
1415b6917d
15d17c19c
hex8e51c6b

149232747 has 16 divisors (see below), whose sum is σ = 205230080. Its totient is φ = 96399072.

The previous prime is 149232737. The next prime is 149232757. The reversal of 149232747 is 747232941.

149232747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (149232737) and next prime (149232757).

It is not a de Polignac number, because 149232747 - 214 = 149216363 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149232737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11829 + ... + 20937.

It is an arithmetic number, because the mean of its divisors is an integer number (12826880).

Almost surely, 2149232747 is an apocalyptic number.

149232747 is a deficient number, since it is larger than the sum of its proper divisors (55997333).

149232747 is a wasteful number, since it uses less digits than its factorization.

149232747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9282.

The product of its digits is 84672, while the sum is 39.

The square root of 149232747 is about 12216.0855841796. The cubic root of 149232747 is about 530.4218156150.

The spelling of 149232747 in words is "one hundred forty-nine million, two hundred thirty-two thousand, seven hundred forty-seven".

Divisors: 1 3 43 127 129 381 5461 9109 16383 27327 391687 1156843 1175061 3470529 49744249 149232747