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2085976987 = 36710635347
BaseRepresentation
bin111110001010101…
…0111101110011011
312101101010121110221
41330111113232123
513233002230422
6542553420511
7102456340363
oct17425275633
95341117427
102085976987
11980530426
124a270a737
1327321b113
1415b0799a3
15c31e73c7
hex7c557b9b

2085976987 has 8 divisors (see below), whose sum is σ = 2094020096. Its totient is φ = 2077947432.

The previous prime is 2085976969. The next prime is 2085977029. The reversal of 2085976987 is 7896795802.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2085976987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2085970987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387448 + ... + 392794.

It is an arithmetic number, because the mean of its divisors is an integer number (261752512).

Almost surely, 22085976987 is an apocalyptic number.

2085976987 is a deficient number, since it is larger than the sum of its proper divisors (8043109).

2085976987 is a wasteful number, since it uses less digits than its factorization.

2085976987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6777.

The product of its (nonzero) digits is 15240960, while the sum is 61.

The square root of 2085976987 is about 45672.4970523837. The cubic root of 2085976987 is about 1277.7223874394.

The spelling of 2085976987 in words is "two billion, eighty-five million, nine hundred seventy-six thousand, nine hundred eighty-seven".

Divisors: 1 367 1063 5347 390121 1962349 5683861 2085976987