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120870439837 = 719390798641
BaseRepresentation
bin111000010010001110…
…0001000101110011101
3102112222200001112110221
41300210130020232131
53440020313033322
6131305505001341
711506165533610
oct1604434105635
9375880045427
10120870439837
1147296237494
121b513323251
13b523631024
145bc8baa177
1532265e39c7
hex1c24708b9d

120870439837 has 16 divisors (see below), whose sum is σ = 139007884672. Its totient is φ = 102951751680.

The previous prime is 120870439817. The next prime is 120870439867. The reversal of 120870439837 is 738934078021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120870439837 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 (120870439817) by changing a digit.

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, 1176037 + ... + 1274677.

It is an arithmetic number, because the mean of its divisors is an integer number (8687992792).

Almost surely, 2120870439837 is an apocalyptic number.

It is an amenable number.

120870439837 is a deficient number, since it is larger than the sum of its proper divisors (18137444835).

120870439837 is an equidigital number, since it uses as much as digits as its factorization.

120870439837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99748.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 120870439837 in words is "one hundred twenty billion, eight hundred seventy million, four hundred thirty-nine thousand, eight hundred thirty-seven".

Divisors: 1 7 193 907 1351 6349 98641 175051 690487 1225357 19037713 89467387 133263991 626271709 17267205691 120870439837