Search a number
-
+
34231431 = 3136114389
BaseRepresentation
bin1000001010010…
…1010010000111
32101102010200210
42002211102013
532230401211
63221410503
7563651043
oct202452207
971363623
1034231431
1118360643
12b569a33
137126cb0
144791023
1530129a6
hex20a5487

34231431 has 16 divisors (see below), whose sum is σ = 49962080. Its totient is φ = 20718720.

The previous prime is 34231427. The next prime is 34231451. The reversal of 34231431 is 13413243.

It is not a de Polignac number, because 34231431 - 22 = 34231427 is a prime.

It is a super-2 number, since 2×342314312 = 2343581736615522, 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 = 34231398 and 34231407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34231451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4816 + ... + 9573.

It is an arithmetic number, because the mean of its divisors is an integer number (3122630).

Almost surely, 234231431 is an apocalyptic number.

34231431 is a deficient number, since it is larger than the sum of its proper divisors (15730649).

34231431 is a wasteful number, since it uses less digits than its factorization.

34231431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14466.

The product of its digits is 864, while the sum is 21.

The square root of 34231431 is about 5850.7632835383. The cubic root of 34231431 is about 324.6945643229.

Adding to 34231431 its reverse (13413243), we get a palindrome (47644674).

The spelling of 34231431 in words is "thirty-four million, two hundred thirty-one thousand, four hundred thirty-one".

Divisors: 1 3 13 39 61 183 793 2379 14389 43167 187057 561171 877729 2633187 11410477 34231431