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4080261 = 31360087
BaseRepresentation
bin1111100100001010000101
321200022001210
433210022011
52021032021
6223242033
746452543
oct17441205
97608053
104080261
112337619
121449319
13acb273
14782d93
15558e76
hex3e4285

4080261 has 4 divisors (see below), whose sum is σ = 5440352. Its totient is φ = 2720172.

The previous prime is 4080259. The next prime is 4080281. The reversal of 4080261 is 1620804.

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 not a de Polignac number, because 4080261 - 21 = 4080259 is a prime.

It is a D-number.

It is a Duffinian number.

4080261 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4080281) 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, 680041 + ... + 680046.

It is an arithmetic number, because the mean of its divisors is an integer number (1360088).

Almost surely, 24080261 is an apocalyptic number.

It is an amenable number.

4080261 is a deficient number, since it is larger than the sum of its proper divisors (1360091).

4080261 is a wasteful number, since it uses less digits than its factorization.

4080261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360090.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 4080261 is about 2019.9655937664. The cubic root of 4080261 is about 159.7948020529.

The spelling of 4080261 in words is "four million, eighty thousand, two hundred sixty-one".

Divisors: 1 3 1360087 4080261