Search a number
-
+
2401431 = 3800477
BaseRepresentation
bin1001001010010010010111
311112000010220
421022102113
51103321211
6123245423
726261154
oct11122227
94460126
102401431
1113a025a
12979873
13661086
1446722b
15326806
hex24a497

2401431 has 4 divisors (see below), whose sum is σ = 3201912. Its totient is φ = 1600952.

The previous prime is 2401423. The next prime is 2401447. The reversal of 2401431 is 1341042.

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 2401431 - 23 = 2401423 is a prime.

It is a super-2 number, since 2×24014312 = 11533741695522, which contains 22 as substring.

It is a D-number.

It is a plaindrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 2401431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2401031) 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, 400236 + ... + 400241.

It is an arithmetic number, because the mean of its divisors is an integer number (800478).

22401431 is an apocalyptic number.

2401431 is a deficient number, since it is larger than the sum of its proper divisors (800481).

2401431 is an equidigital number, since it uses as much as digits as its factorization.

2401431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800480.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2401431 is about 1549.6551229225. The cubic root of 2401431 is about 133.9131946892.

Adding to 2401431 its reverse (1341042), we get a palindrome (3742473).

The spelling of 2401431 in words is "two million, four hundred one thousand, four hundred thirty-one".

Divisors: 1 3 800477 2401431