Search a number
-
+
431130244 = 22107782561
BaseRepresentation
bin11001101100101…
…000011010000100
31010001020200111211
4121230220122010
51340332131434
6110440341204
713453355326
oct3154503204
91101220454
10431130244
112013a8596
12100474804
136b420b6c
1441389616
1527cb2464
hex19b28684

431130244 has 6 divisors (see below), whose sum is σ = 754477934. Its totient is φ = 215565120.

The previous prime is 431130241. The next prime is 431130289. The reversal of 431130244 is 442031134.

It can be written as a sum of positive squares in only one way, i.e., 385729600 + 45400644 = 19640^2 + 6738^2 .

It is not an unprimeable number, because it can be changed into a prime (431130241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53891277 + ... + 53891284.

Almost surely, 2431130244 is an apocalyptic number.

It is an amenable number.

431130244 is a deficient number, since it is larger than the sum of its proper divisors (323347690).

431130244 is a wasteful number, since it uses less digits than its factorization.

431130244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107782565 (or 107782563 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 431130244 is about 20763.6760714475. The cubic root of 431130244 is about 755.4449632089. Note that the first 3 decimals are identical.

Adding to 431130244 its reverse (442031134), we get a palindrome (873161378).

The spelling of 431130244 in words is "four hundred thirty-one million, one hundred thirty thousand, two hundred forty-four".

Divisors: 1 2 4 107782561 215565122 431130244