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31424304430 = 258773583159
BaseRepresentation
bin11101010001000010…
…001101010100101110
310000010000101001202001
4131101002031110232
51003324110220210
622234111522514
72161503115621
oct352102152456
9100100331661
1031424304430
1112366223032
12610bb2943a
132c6a4a329c
141741685db8
15c3dbc003a
hex75108d52e

31424304430 has 16 divisors (see below), whose sum is σ = 56628260640. Its totient is φ = 12555385632.

The previous prime is 31424304419. The next prime is 31424304433. The reversal of 31424304430 is 3440342413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31424304433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1782810 + ... + 1800349.

It is an arithmetic number, because the mean of its divisors is an integer number (3539266290).

Almost surely, 231424304430 is an apocalyptic number.

31424304430 is a deficient number, since it is larger than the sum of its proper divisors (25203956210).

31424304430 is a wasteful number, since it uses less digits than its factorization.

31424304430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3584043.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 31424304430 its reverse (3440342413), we get a palindrome (34864646843).

The spelling of 31424304430 in words is "thirty-one billion, four hundred twenty-four million, three hundred four thousand, four hundred thirty".

Divisors: 1 2 5 10 877 1754 4385 8770 3583159 7166318 17915795 35831590 3142430443 6284860886 15712152215 31424304430