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213697871794929 = 3672390110593943
BaseRepresentation
bin110000100101101101101001…
…101111001101001011110001
31001000122022120010000222001210
4300211231221233031023301
5211002211220134414204
62034255240320350333
763004106322424224
oct6045555157151361
91030568503028053
10213697871794929
11620aa838599775
121bb740b4a753a9
1392318134cc392
143aab0644415bb
1519a8b8aa44389
hexc25b69bcd2f1

213697871794929 has 8 divisors (see below), whose sum is σ = 284930564997952. Its totient is φ = 142465213227600.

The previous prime is 213697871794877. The next prime is 213697871794973. The reversal of 213697871794929 is 929497178796312.

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

It is not a de Polignac number, because 213697871794929 - 219 = 213697871270641 is a prime.

It is a super-2 number, since 2×2136978717949292 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213697871794999) 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, 14874732 + ... + 25468674.

It is an arithmetic number, because the mean of its divisors is an integer number (35616320624744).

Almost surely, 2213697871794929 is an apocalyptic number.

It is an amenable number.

213697871794929 is a deficient number, since it is larger than the sum of its proper divisors (71232693203023).

213697871794929 is a wasteful number, since it uses less digits than its factorization.

213697871794929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17317847.

The product of its digits is 5184974592, while the sum is 84.

The spelling of 213697871794929 in words is "two hundred thirteen trillion, six hundred ninety-seven billion, eight hundred seventy-one million, seven hundred ninety-four thousand, nine hundred twenty-nine".

Divisors: 1 3 6723901 10593943 20171703 31781829 71232623931643 213697871794929