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31134312230 = 257444775889
BaseRepresentation
bin11100111111101111…
…111110011100100110
32222100210200221020012
4130333233332130212
51002230340442410
622145232210222
72151352200410
oct347757763446
988323627205
1031134312230
111222756465a
12604a999972
132c2239a778
141714d599b0
15c234db605
hex73fbfe726

31134312230 has 16 divisors (see below), whose sum is σ = 64047728160. Its totient is φ = 10674621312.

The previous prime is 31134312211. The next prime is 31134312257. The reversal of 31134312230 is 3221343113.

It is a junction number, because it is equal to n+sod(n) for n = 31134312196 and 31134312205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222387875 + ... + 222388014.

It is an arithmetic number, because the mean of its divisors is an integer number (4002983010).

Almost surely, 231134312230 is an apocalyptic number.

31134312230 is an abundant number, since it is smaller than the sum of its proper divisors (32913415930).

31134312230 is a wasteful number, since it uses less digits than its factorization.

31134312230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444775903.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 31134312230 its reverse (3221343113), we get a palindrome (34355655343).

The spelling of 31134312230 in words is "thirty-one billion, one hundred thirty-four million, three hundred twelve thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 444775889 889551778 2223879445 3113431223 4447758890 6226862446 15567156115 31134312230