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31220102000191 = 132791860460877
BaseRepresentation
bin1110001100100111111110…
…00101101110111000111111
311002112121112120212021200011
413012103333011232320333
513043002232103001231
6150222152235244051
76401402142311626
oct706237705567077
9132477476767604
1031220102000191
119a47409744445
1236027b8ba9627
131456073595910
1479d0bd54c6bd
1539218e67c9b1
hex1c64ff16ee3f

31220102000191 has 8 divisors (see below), whose sum is σ = 33633694799264. Its totient is φ = 28808230128480.

The previous prime is 31220102000167. The next prime is 31220102000201. The reversal of 31220102000191 is 19100020102213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31220102000191 - 25 = 31220102000159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31220102000141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430194156 + ... + 430266721.

It is an arithmetic number, because the mean of its divisors is an integer number (4204211849908).

Almost surely, 231220102000191 is an apocalyptic number.

31220102000191 is a deficient number, since it is larger than the sum of its proper divisors (2413592799073).

31220102000191 is a wasteful number, since it uses less digits than its factorization.

31220102000191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860463681.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 31220102000191 in words is "thirty-one trillion, two hundred twenty billion, one hundred two million, one hundred ninety-one", and thus it is an aban number.

Divisors: 1 13 2791 36283 860460877 11185991401 2401546307707 31220102000191