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2100680497 = 17313986111
BaseRepresentation
bin111110100110101…
…1101011100110001
312102101210121220101
41331031131130301
513300233233442
6544240512401
7103025326636
oct17515353461
95371717811
102100680497
11988863393
124a761b701
13276298816
1415cdc618d
15c464dcb7
hex7d35d731

2100680497 has 8 divisors (see below), whose sum is σ = 2296000512. Its totient is φ = 1913332800.

The previous prime is 2100680447. The next prime is 2100680501. The reversal of 2100680497 is 7940860012.

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

It is a cyclic number.

It is not a de Polignac number, because 2100680497 - 211 = 2100678449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100680437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1992529 + ... + 1993582.

It is an arithmetic number, because the mean of its divisors is an integer number (287000064).

Almost surely, 22100680497 is an apocalyptic number.

It is an amenable number.

2100680497 is a deficient number, since it is larger than the sum of its proper divisors (195320015).

2100680497 is a wasteful number, since it uses less digits than its factorization.

2100680497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3986159.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 2100680497 is about 45833.1811791414. The cubic root of 2100680497 is about 1280.7174723159.

The spelling of 2100680497 in words is "two billion, one hundred million, six hundred eighty thousand, four hundred ninety-seven".

Divisors: 1 17 31 527 3986111 67763887 123569441 2100680497