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31043221130 = 2531100139423
BaseRepresentation
bin11100111010010100…
…011111011010001010
32222010110022000201202
4130322110133122022
51002034031034010
622132215544202
72146165011605
oct347224373212
988113260652
1031043221130
11121900a8559
12602438b062
132c09555ccc
141706c0733c
15c1a4e66a5
hex73a51f68a

31043221130 has 16 divisors (see below), whose sum is σ = 57680308224. Its totient is φ = 12016730640.

The previous prime is 31043221091. The next prime is 31043221151. The reversal of 31043221130 is 3112234013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50069402 + ... + 50070021.

It is an arithmetic number, because the mean of its divisors is an integer number (3605019264).

Almost surely, 231043221130 is an apocalyptic number.

31043221130 is a deficient number, since it is larger than the sum of its proper divisors (26637087094).

31043221130 is a wasteful number, since it uses less digits than its factorization.

31043221130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100139461.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31043221130 its reverse (3112234013), we get a palindrome (34155455143).

The spelling of 31043221130 in words is "thirty-one billion, forty-three million, two hundred twenty-one thousand, one hundred thirty".

Divisors: 1 2 5 10 31 62 155 310 100139423 200278846 500697115 1001394230 3104322113 6208644226 15521610565 31043221130