Search a number
-
+
1253431044430 = 251920533213349
BaseRepresentation
bin10010001111010110010…
…011111110100101001110
311102211022202122101201221
4102033112103332211032
5131014011321410210
62355452425153554
7156362122041535
oct22172623764516
94384282571657
101253431044430
11443639169654
12182b0b62b8ba
139127612ca26
14449487c731c
15229108bb1da
hex123d64fe94e

1253431044430 has 32 divisors (see below), whose sum is σ = 2376079524000. Its totient is φ = 474752886912.

The previous prime is 1253431044347. The next prime is 1253431044443. The reversal of 1253431044430 is 344401343521.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1216605 + ... + 1996744.

It is an arithmetic number, because the mean of its divisors is an integer number (74252485125).

Almost surely, 21253431044430 is an apocalyptic number.

1253431044430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1253431044430 is a deficient number, since it is larger than the sum of its proper divisors (1122648479570).

1253431044430 is a wasteful number, since it uses less digits than its factorization.

1253431044430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215428.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 1253431044430 its reverse (344401343521), we get a palindrome (1597832387951).

The spelling of 1253431044430 in words is "one trillion, two hundred fifty-three billion, four hundred thirty-one million, forty-four thousand, four hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 2053 4106 10265 20530 39007 78014 195035 390070 3213349 6426698 16066745 32133490 61053631 122107262 305268155 610536310 6597005497 13194010994 32985027485 65970054970 125343104443 250686208886 626715522215 1253431044430