Search a number
-
+
20695473113 = 719155605061
BaseRepresentation
bin10011010001100010…
…111101101111011001
31222102022011222000012
4103101202331233121
5314341020114423
613301331451305
71331565422210
oct232142755731
958368158005
1020695473113
118860067297
124016a56b35
131c4a7c06a3
141004802077
15811d47078
hex4d18bdbd9

20695473113 has 8 divisors (see below), whose sum is σ = 24896809920. Its totient is φ = 16805346480.

The previous prime is 20695473103. The next prime is 20695473119. The reversal of 20695473113 is 31137459602.

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

It is not a de Polignac number, because 20695473113 - 28 = 20695472857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20695473119) 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, 77802398 + ... + 77802663.

It is an arithmetic number, because the mean of its divisors is an integer number (3112101240).

Almost surely, 220695473113 is an apocalyptic number.

It is an amenable number.

20695473113 is a deficient number, since it is larger than the sum of its proper divisors (4201336807).

20695473113 is a wasteful number, since it uses less digits than its factorization.

20695473113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155605087.

The product of its (nonzero) digits is 136080, while the sum is 41.

The spelling of 20695473113 in words is "twenty billion, six hundred ninety-five million, four hundred seventy-three thousand, one hundred thirteen".

Divisors: 1 7 19 133 155605061 1089235427 2956496159 20695473113