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4148431 = 71095437
BaseRepresentation
bin1111110100110011001111
321210202120121
433310303033
52030222211
6224525411
750155360
oct17646317
97722517
104148431
112383861
121480867
13b232c1
1479db67
1556e271
hex3f4ccf

4148431 has 8 divisors (see below), whose sum is σ = 4785440. Its totient is φ = 3522528.

The previous prime is 4148413. The next prime is 4148437. The reversal of 4148431 is 1348414.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4148431 - 211 = 4146383 is a prime.

It is a super-2 number, since 2×41484312 = 34418959523522, which contains 22 as substring.

It is a Duffinian number.

4148431 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4148396 and 4148405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4148437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1956 + ... + 3481.

It is an arithmetic number, because the mean of its divisors is an integer number (598180).

Almost surely, 24148431 is an apocalyptic number.

4148431 is a deficient number, since it is larger than the sum of its proper divisors (637009).

4148431 is a wasteful number, since it uses less digits than its factorization.

4148431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5553.

The product of its digits is 1536, while the sum is 25.

The square root of 4148431 is about 2036.7697464367. The cubic root of 4148431 is about 160.6798028970.

The spelling of 4148431 in words is "four million, one hundred forty-eight thousand, four hundred thirty-one".

Divisors: 1 7 109 763 5437 38059 592633 4148431