Search a number
-
+
1431223230 = 235139343219
BaseRepresentation
bin101010101001110…
…1011101110111110
310200202002200011210
41111103223232332
510412343120410
6354004025250
750316124323
oct12523535676
93622080153
101431223230
11674985218
1233b392226
1319a691468
14d811cb4a
15859b1220
hex554ebbbe

1431223230 has 32 divisors (see below), whose sum is σ = 3459657600. Its totient is φ = 378912672.

The previous prime is 1431223229. The next prime is 1431223259. The reversal of 1431223230 is 323221341.

It is a junction number, because it is equal to n+sod(n) for n = 1431223197 and 1431223206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167440 + ... + 175779.

It is an arithmetic number, because the mean of its divisors is an integer number (108114300).

Almost surely, 21431223230 is an apocalyptic number.

1431223230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1431223230 is an abundant number, since it is smaller than the sum of its proper divisors (2028434370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1431223230 is a wasteful number, since it uses less digits than its factorization.

1431223230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343368.

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

The square root of 1431223230 is about 37831.5110721208. The cubic root of 1431223230 is about 1126.9443197025.

Adding to 1431223230 its reverse (323221341), we get a palindrome (1754444571).

The spelling of 1431223230 in words is "one billion, four hundred thirty-one million, two hundred twenty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 139 278 417 695 834 1390 2085 4170 343219 686438 1029657 1716095 2059314 3432190 5148285 10296570 47707441 95414882 143122323 238537205 286244646 477074410 715611615 1431223230