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168785095389 = 3193291511391
BaseRepresentation
bin1001110100110001100…
…0000010101011011101
3121010122220221020022020
42131030120002223131
510231132441023024
6205312214210353
715123436432131
oct2351430025335
9533586836266
10168785095389
1165643871379
12288659539b9
1312bbb344811
1482525873c1
1545ccd68979
hex274c602add

168785095389 has 8 divisors (see below), whose sum is σ = 226212840192. Its totient is φ = 111940373760.

The previous prime is 168785095337. The next prime is 168785095393. The reversal of 168785095389 is 983590587861.

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

It is not a de Polignac number, because 168785095389 - 228 = 168516659933 is a prime.

It is a super-2 number, since 2×1687850953892 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168785095319) 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, 145755117 + ... + 145756274.

It is an arithmetic number, because the mean of its divisors is an integer number (28276605024).

Almost surely, 2168785095389 is an apocalyptic number.

It is an amenable number.

168785095389 is a deficient number, since it is larger than the sum of its proper divisors (57427744803).

168785095389 is a wasteful number, since it uses less digits than its factorization.

168785095389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291511587.

The product of its (nonzero) digits is 130636800, while the sum is 69.

The spelling of 168785095389 in words is "one hundred sixty-eight billion, seven hundred eighty-five million, ninety-five thousand, three hundred eighty-nine".

Divisors: 1 3 193 579 291511391 874534173 56261698463 168785095389