Search a number
-
+
207318804969 = 3193637172017
BaseRepresentation
bin1100000100010100101…
…0011110100111101001
3201211010101220111111010
43001011022132213221
511344042103224334
6235124013254133
720656360523553
oct3010512364751
9654111814433
10207318804969
117aa18073751
123421a794349
131671c6a83c3
14a06a1084d3
1555d5c640e9
hex304529e9e9

207318804969 has 8 divisors (see below), whose sum is σ = 290973761440. Its totient is φ = 130938192576.

The previous prime is 207318804947. The next prime is 207318804971. The reversal of 207318804969 is 969408813702.

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

It is not a de Polignac number, because 207318804969 - 25 = 207318804937 is a prime.

It is a super-2 number, since 2×2073188049692 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 3637172017 = 207318804969 / (2 + 0 + 7 + 3 + 1 + 8 + 8 + 0 + 4 + 9 + 6 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207318804929) 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, 1818585952 + ... + 1818586065.

It is an arithmetic number, because the mean of its divisors is an integer number (36371720180).

Almost surely, 2207318804969 is an apocalyptic number.

It is an amenable number.

207318804969 is a deficient number, since it is larger than the sum of its proper divisors (83654956471).

207318804969 is a wasteful number, since it uses less digits than its factorization.

207318804969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3637172039.

The product of its (nonzero) digits is 5225472, while the sum is 57.

The spelling of 207318804969 in words is "two hundred seven billion, three hundred eighteen million, eight hundred four thousand, nine hundred sixty-nine".

Divisors: 1 3 19 57 3637172017 10911516051 69106268323 207318804969