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4272761 = 31137831
BaseRepresentation
bin10000010011001001111001
322001002010102
4100103021321
52043212021
6231325145
751214013
oct20231171
98032112
104272761
112459209
1215207b5
13b67a7c
147d31b3
1559600b
hex413279

4272761 has 4 divisors (see below), whose sum is σ = 4410624. Its totient is φ = 4134900.

The previous prime is 4272743. The next prime is 4272767. The reversal of 4272761 is 1672724.

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 4272761 - 210 = 4271737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4272767) 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, 68885 + ... + 68946.

It is an arithmetic number, because the mean of its divisors is an integer number (1102656).

Almost surely, 24272761 is an apocalyptic number.

It is an amenable number.

4272761 is a deficient number, since it is larger than the sum of its proper divisors (137863).

4272761 is a wasteful number, since it uses less digits than its factorization.

4272761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137862.

The product of its digits is 4704, while the sum is 29.

The square root of 4272761 is about 2067.0657947922. The cubic root of 4272761 is about 162.2692393237.

The spelling of 4272761 in words is "four million, two hundred seventy-two thousand, seven hundred sixty-one".

Divisors: 1 31 137831 4272761