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108768699601 = 3298012
BaseRepresentation
bin110010101001100011…
…1101010010011010001
3101101202021111102202121
41211103013222103101
53240224241341401
6121545002414241
710600250456242
oct1452307522321
9341667442677
10108768699601
1142146105981
12190b6501381
13a3453968a3
14539b866cc9
152c68e77ca1
hex19531ea4d1

108768699601 has 3 divisors (see below), whose sum is σ = 108769029403. Its totient is φ = 108768369800.

The previous prime is 108768699527. The next prime is 108768699623. The reversal of 108768699601 is 106996867801.

The square root of 108768699601 is 329801.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 106996867801 = 613174546277.

It can be written as a sum of positive squares in only one way, i.e., 48114861201 + 60653838400 = 219351^2 + 246280^2 .

It is not a de Polignac number, because 108768699601 - 217 = 108768568529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108768699601.

It is not an unprimeable number, because it can be changed into a prime (108768699671) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 164901 + ... + 494701.

Almost surely, 2108768699601 is an apocalyptic number.

108768699601 is the 329801-st square number.

108768699601 is the 164901-st centered octagonal number.

It is an amenable number.

108768699601 is a deficient number, since it is larger than the sum of its proper divisors (329802).

108768699601 is an frugal number, since it uses more digits than its factorization.

108768699601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659602 (or 329801 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 61.

The spelling of 108768699601 in words is "one hundred eight billion, seven hundred sixty-eight million, six hundred ninety-nine thousand, six hundred one".

Divisors: 1 329801 108768699601