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105088697680 = 24511931101097
BaseRepresentation
bin110000111011111000…
…1100100010101010000
3101001020210220222011011
41201313301210111100
53210210201311210
6120135503300304
710410124122541
oct1416761442520
9331223828134
10105088697680
1140627914a7a
1218449baa694
139ba9b55565
14512cc104c8
152b00d61d8a
hex1877c64550

105088697680 has 40 divisors (see below), whose sum is σ = 244536248232. Its totient is φ = 42000205824.

The previous prime is 105088697633. The next prime is 105088697687. The reversal of 105088697680 is 86796880501.

It can be written as a sum of positive squares in 4 ways, for example, as 221533456 + 104867164224 = 14884^2 + 323832^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1050886976802 (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 (105088697687) 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 7 ways as a sum of consecutive naturals, for example, 455109 + ... + 645988.

Almost surely, 2105088697680 is an apocalyptic number.

105088697680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105088697680 is an abundant number, since it is smaller than the sum of its proper divisors (139447550552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105088697680 is a wasteful number, since it uses less digits than its factorization.

105088697680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102303 (or 1102297 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 58.

The spelling of 105088697680 in words is "one hundred five billion, eighty-eight million, six hundred ninety-seven thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1193 2386 4772 5965 9544 11930 19088 23860 47720 95440 1101097 2202194 4404388 5505485 8808776 11010970 17617552 22021940 44043880 88087760 1313608721 2627217442 5254434884 6568043605 10508869768 13136087210 21017739536 26272174420 52544348840 105088697680