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31048866667 = 7132269150373
BaseRepresentation
bin11100111010101010…
…000001101101101011
32222010211220211221201
4130322222001231223
51002042002213132
622132540545031
72146264004110
oct347252015553
988124824851
1031048866667
1112193304095
126026252177
132c0a781870
141707876907
15c1ac5e2e7
hex73aa81b6b

31048866667 has 16 divisors (see below), whose sum is σ = 38231085760. Its totient is φ = 24555146112.

The previous prime is 31048866661. The next prime is 31048866677. The reversal of 31048866667 is 76666884013.

It is not a de Polignac number, because 31048866667 - 23 = 31048866659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31048866661) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 131293 + ... + 281665.

It is an arithmetic number, because the mean of its divisors is an integer number (2389442860).

Almost surely, 231048866667 is an apocalyptic number.

31048866667 is a deficient number, since it is larger than the sum of its proper divisors (7182219093).

31048866667 is a wasteful number, since it uses less digits than its factorization.

31048866667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152662.

The product of its (nonzero) digits is 6967296, while the sum is 55.

The spelling of 31048866667 in words is "thirty-one billion, forty-eight million, eight hundred sixty-six thousand, six hundred sixty-seven".

Divisors: 1 7 13 91 2269 15883 29497 150373 206479 1052611 1954849 13683943 341196337 2388374359 4435552381 31048866667