Search a number
-
+
6918457350670 = 2531110832013679
BaseRepresentation
bin110010010101101010000…
…1100010101101000001110
3220111101202012002012022221
41210223110030111220032
51401323000040210140
622414143451325554
71312561552116535
oct144532414255016
926441665065287
106918457350670
1122281128a0a68
12938a154508ba
133b253ba1ab78
1419cbd865531c
15bee71aae14a
hex64ad4315a0e

6918457350670 has 32 divisors (see below), whose sum is σ = 12856106373120. Its totient is φ = 2677869551520.

The previous prime is 6918457350647. The next prime is 6918457350677. The reversal of 6918457350670 is 760537548196.

It is a happy number.

It is a super-2 number, since 2×69184573506702 (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6918457350599 and 6918457350608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6918457350677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2428891 + ... + 4442569.

It is an arithmetic number, because the mean of its divisors is an integer number (401753324160).

Almost surely, 26918457350670 is an apocalyptic number.

6918457350670 is a deficient number, since it is larger than the sum of its proper divisors (5937649022450).

6918457350670 is a wasteful number, since it uses less digits than its factorization.

6918457350670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024800.

The product of its (nonzero) digits is 38102400, while the sum is 61.

The spelling of 6918457350670 in words is "six trillion, nine hundred eighteen billion, four hundred fifty-seven million, three hundred fifty thousand, six hundred seventy".

Divisors: 1 2 5 10 31 62 155 310 11083 22166 55415 110830 343573 687146 1717865 2013679 3435730 4027358 10068395 20136790 62424049 124848098 312120245 624240490 22317604357 44635208714 111588021785 223176043570 691845735067 1383691470134 3459228675335 6918457350670