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31234412230 = 2574079109391
BaseRepresentation
bin11101000101101101…
…110100111011000110
32222121210001112121121
4131011231310323012
51002432002142410
622203205504154
72154006060220
oct350555647306
988553045547
1031234412230
111227901422a
12607841205a
132c3a047938
141724375410
15c2c1b09da
hex745b74ec6

31234412230 has 32 divisors (see below), whose sum is σ = 64269987840. Its totient is φ = 10706218080.

The previous prime is 31234412207. The next prime is 31234412233. The reversal of 31234412230 is 3221443213.

It is a junction number, because it is equal to n+sod(n) for n = 31234412195 and 31234412204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31234412233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230835 + ... + 340225.

It is an arithmetic number, because the mean of its divisors is an integer number (2008437120).

Almost surely, 231234412230 is an apocalyptic number.

31234412230 is an abundant number, since it is smaller than the sum of its proper divisors (33035575610).

31234412230 is a wasteful number, since it uses less digits than its factorization.

31234412230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113484.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31234412230 its reverse (3221443213), we get a palindrome (34455855443).

The spelling of 31234412230 in words is "thirty-one billion, two hundred thirty-four million, four hundred twelve thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 4079 8158 20395 28553 40790 57106 109391 142765 218782 285530 546955 765737 1093910 1531474 3828685 7657370 446205889 892411778 2231029445 3123441223 4462058890 6246882446 15617206115 31234412230