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8613139199 = 73172364223
BaseRepresentation
bin10000000010110001…
…00001001011111111
3211020021010210202112
420001120201023333
5120114430423244
63542401244235
7423304322000
oct100130411377
924207123675
108613139199
11371a98aa65
12180463367b
13a7358c392
145b9cb11a7
1535626139e
hex2016212ff

8613139199 has 32 divisors (see below), whose sum is σ = 11097907200. Its totient is φ = 6646206336.

The previous prime is 8613139189. The next prime is 8613139201. The reversal of 8613139199 is 9919313168.

8613139199 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8613139199 - 212 = 8613135103 is a prime.

It is a super-2 number, since 2×86131391992 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8613139159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102002 + ... + 166224.

It is an arithmetic number, because the mean of its divisors is an integer number (346809600).

Almost surely, 28613139199 is an apocalyptic number.

8613139199 is a deficient number, since it is larger than the sum of its proper divisors (2484768001).

8613139199 is a wasteful number, since it uses less digits than its factorization.

8613139199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64284 (or 64270 counting only the distinct ones).

The product of its digits is 314928, while the sum is 50.

The square root of 8613139199 is about 92806.9997306238. Note that the first 3 decimals coincide. The cubic root of 8613139199 is about 2049.8424783981.

Adding to 8613139199 its sum of digits (50), we get a square (8613139249 = 928072).

The spelling of 8613139199 in words is "eight billion, six hundred thirteen million, one hundred thirty-nine thousand, one hundred ninety-nine".

Divisors: 1 7 17 23 49 119 161 343 391 833 1127 2737 5831 7889 19159 64223 134113 449561 1091791 1477129 3146927 7642537 10339903 22028489 25111193 53497759 72379321 175778351 374484313 506655247 1230448457 8613139199