Search a number
-
+
78471680704013 = 1732391897880879
BaseRepresentation
bin10001110101111010011100…
…101001110011111000001101
3101021211211010100110121000002
4101311322130221303320031
540241140000230012023
6434521220434014045
722346251254340532
oct2165723451637015
9337754110417002
1078471680704013
1123004720006603
128974407117325
1334a2b0363524c
14155409a1c0d89
159113662a6b28
hex475e9ca73e0d

78471680704013 has 8 divisors (see below), whose sum is σ = 79255505548800. Its totient is φ = 77691651621808.

The previous prime is 78471680703989. The next prime is 78471680704061. The reversal of 78471680704013 is 31040708617487.

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

It is a cyclic number.

It is not a de Polignac number, because 78471680704013 - 224 = 78471663926797 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 78471680704013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78471680704063) 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, 948899093 + ... + 948981786.

It is an arithmetic number, because the mean of its divisors is an integer number (9906938193600).

Almost surely, 278471680704013 is an apocalyptic number.

It is an amenable number.

78471680704013 is a deficient number, since it is larger than the sum of its proper divisors (783824844787).

78471680704013 is a wasteful number, since it uses less digits than its factorization.

78471680704013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897881291.

The product of its (nonzero) digits is 6322176, while the sum is 56.

The spelling of 78471680704013 in words is "seventy-eight trillion, four hundred seventy-one billion, six hundred eighty million, seven hundred four thousand, thirteen".

Divisors: 1 173 239 41347 1897880879 328333392067 453593530081 78471680704013