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4272137 = 31313649
BaseRepresentation
bin10000010011000000001001
322001001021022
4100103000021
52043202022
6231322225
751212132
oct20230011
98031238
104272137
1124587a1
121520375
13b676bc
147d2c89
15595c42
hex413009

4272137 has 4 divisors (see below), whose sum is σ = 4286100. Its totient is φ = 4258176.

The previous prime is 4272119. The next prime is 4272139. The reversal of 4272137 is 7312724.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 175561 + 4096576 = 419^2 + 2024^2 .

It is a cyclic number.

It is not a de Polignac number, because 4272137 - 28 = 4271881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4272139) 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, 6512 + ... + 7137.

It is an arithmetic number, because the mean of its divisors is an integer number (1071525).

Almost surely, 24272137 is an apocalyptic number.

It is an amenable number.

4272137 is a deficient number, since it is larger than the sum of its proper divisors (13963).

4272137 is a wasteful number, since it uses less digits than its factorization.

4272137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13962.

The product of its digits is 2352, while the sum is 26.

The square root of 4272137 is about 2066.9148506893. The cubic root of 4272137 is about 162.2613395968.

The spelling of 4272137 in words is "four million, two hundred seventy-two thousand, one hundred thirty-seven".

Divisors: 1 313 13649 4272137