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6860860087 = 37185428651
BaseRepresentation
bin1100110001111000…
…00110101010110111
3122201010220210201011
412120330012222313
5103022340010322
63052444013051
7332006230354
oct63074065267
918633823634
106860860087
112a0085a804
1213b5831187
1385453a233
1449129b62b
152a24d2677
hex198f06ab7

6860860087 has 4 divisors (see below), whose sum is σ = 7046288776. Its totient is φ = 6675431400.

The previous prime is 6860860079. The next prime is 6860860121. The reversal of 6860860087 is 7800680686.

6860860087 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7800680686 = 23900340343.

It is a cyclic number.

It is not a de Polignac number, because 6860860087 - 23 = 6860860079 is a prime.

It is a super-2 number, since 2×68608600872 = 94142802266779295138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6860860087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6860860037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92714289 + ... + 92714362.

It is an arithmetic number, because the mean of its divisors is an integer number (1761572194).

Almost surely, 26860860087 is an apocalyptic number.

6860860087 is a deficient number, since it is larger than the sum of its proper divisors (185428689).

6860860087 is a wasteful number, since it uses less digits than its factorization.

6860860087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185428688.

The product of its (nonzero) digits is 774144, while the sum is 49.

The square root of 6860860087 is about 82830.3089877129. The cubic root of 6860860087 is about 1900.1717376621.

The spelling of 6860860087 in words is "six billion, eight hundred sixty million, eight hundred sixty thousand, eighty-seven".

Divisors: 1 37 185428651 6860860087