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689103541291 = 112989172314087
BaseRepresentation
bin10100000011100011100…
…01011001010000101011
32102212200210212221110011
422001301301121100223
542242241001310131
61244323024232351
7100533425312224
oct12016161312053
92385623787404
10689103541291
11246279a90a20
12b167746b6b7
134cc9cb25c39
14254d20a824b
1512dd266c0b1
hexa071c5942b

689103541291 has 32 divisors (see below), whose sum is σ = 786921868800. Its totient is φ = 597670106880.

The previous prime is 689103541271. The next prime is 689103541411. The reversal of 689103541291 is 192145301986.

It is a happy number.

It is not a de Polignac number, because 689103541291 - 219 = 689103017003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (689103541241) 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 31 ways as a sum of consecutive naturals, for example, 48910650 + ... + 48924736.

It is an arithmetic number, because the mean of its divisors is an integer number (24591308400).

Almost surely, 2689103541291 is an apocalyptic number.

689103541291 is a deficient number, since it is larger than the sum of its proper divisors (97818327509).

689103541291 is a wasteful number, since it uses less digits than its factorization.

689103541291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15939.

The product of its (nonzero) digits is 466560, while the sum is 49.

The spelling of 689103541291 in words is "six hundred eighty-nine billion, one hundred three million, five hundred forty-one thousand, two hundred ninety-one".

Divisors: 1 11 29 89 319 979 1723 2581 14087 18953 28391 49967 153347 154957 408523 549637 1253743 1686817 4447063 4493753 13791173 24271901 36358547 48917693 266990911 399944017 703885129 2160199189 7742736419 23762191079 62645776481 689103541291