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31232113210 = 2517244775079
BaseRepresentation
bin11101000101100101…
…000011101000111010
32222121121201201221201
4131011211003220322
51002430410110320
622203044324414
72153650403434
oct350545035072
988547651851
1031232113210
1112277793a11
1260776a370a
132c3972137c
141723d37654
15c2bda970a
hex745943a3a

31232113210 has 32 divisors (see below), whose sum is σ = 59549852160. Its totient is φ = 11753010432.

The previous prime is 31232113207. The next prime is 31232113223. The reversal of 31232113210 is 1231123213.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378451 + ... + 453529.

It is an arithmetic number, because the mean of its divisors is an integer number (1860932880).

Almost surely, 231232113210 is an apocalyptic number.

31232113210 is a deficient number, since it is larger than the sum of its proper divisors (28317738950).

31232113210 is a wasteful number, since it uses less digits than its factorization.

31232113210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77550.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31232113210 its reverse (1231123213), we get a palindrome (32463236423).

The spelling of 31232113210 in words is "thirty-one billion, two hundred thirty-two million, one hundred thirteen thousand, two hundred ten".

Divisors: 1 2 5 10 17 34 85 170 2447 4894 12235 24470 41599 75079 83198 150158 207995 375395 415990 750790 1276343 2552686 6381715 12763430 183718313 367436626 918591565 1837183130 3123211321 6246422642 15616056605 31232113210