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4148231 = 5970309
BaseRepresentation
bin1111110100110000000111
321210202022012
433310300013
52030220411
6224524435
750154653
oct17646007
97722265
104148231
11238369a
12148071b
13b23199
1479da63
1556e18b
hex3f4c07

4148231 has 4 divisors (see below), whose sum is σ = 4218600. Its totient is φ = 4077864.

The previous prime is 4148227. The next prime is 4148233. The reversal of 4148231 is 1328414.

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

It is a cyclic number.

It is not a de Polignac number, because 4148231 - 22 = 4148227 is a prime.

It is a super-2 number, since 2×41482312 = 34415640858722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4148197 and 4148206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4148233) 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, 35096 + ... + 35213.

It is an arithmetic number, because the mean of its divisors is an integer number (1054650).

Almost surely, 24148231 is an apocalyptic number.

4148231 is a deficient number, since it is larger than the sum of its proper divisors (70369).

4148231 is an equidigital number, since it uses as much as digits as its factorization.

4148231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70368.

The product of its digits is 768, while the sum is 23.

The square root of 4148231 is about 2036.7206484936. The cubic root of 4148231 is about 160.6772206776.

The spelling of 4148231 in words is "four million, one hundred forty-eight thousand, two hundred thirty-one".

Divisors: 1 59 70309 4148231