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2428471231 = 14811639751
BaseRepresentation
bin1001000010111111…
…1000011110111111
320021020121010020221
42100233320132333
514433142034411
61040550322211
7114115444024
oct22057703677
96236533227
102428471231
11103689941a
12579359367
132c9176b34
1419075154b
15e32ec071
hex90bf87bf

2428471231 has 4 divisors (see below), whose sum is σ = 2430112464. Its totient is φ = 2426830000.

The previous prime is 2428471229. The next prime is 2428471259. The reversal of 2428471231 is 1321748242.

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 2428471231 - 21 = 2428471229 is a prime.

It is a super-2 number, since 2×24284712312 = 11794945039589310722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2428471271) 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, 818395 + ... + 821356.

It is an arithmetic number, because the mean of its divisors is an integer number (607528116).

Almost surely, 22428471231 is an apocalyptic number.

2428471231 is a deficient number, since it is larger than the sum of its proper divisors (1641233).

2428471231 is a wasteful number, since it uses less digits than its factorization.

2428471231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641232.

The product of its digits is 21504, while the sum is 34.

The square root of 2428471231 is about 49279.5214161014. The cubic root of 2428471231 is about 1344.1394293223.

The spelling of 2428471231 in words is "two billion, four hundred twenty-eight million, four hundred seventy-one thousand, two hundred thirty-one".

Divisors: 1 1481 1639751 2428471231