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868534403870 = 25712407634341
BaseRepresentation
bin11001010001110001010…
…11110100001100011110
310002000211122201011221002
430220320223310030132
5103212224301410440
61502555454310302
7116515043423450
oct14507053641436
93060748634832
10868534403870
113053860347a1
121203b24b8392
1363b96889383
14300744722d0
15178d4e02115
hexca38af431e

868534403870 has 16 divisors (see below), whose sum is σ = 1786699345248. Its totient is φ = 297783224160.

The previous prime is 868534403791. The next prime is 868534403927. The reversal of 868534403870 is 78304435868.

868534403870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6203817101 + ... + 6203817240.

It is an arithmetic number, because the mean of its divisors is an integer number (111668709078).

Almost surely, 2868534403870 is an apocalyptic number.

868534403870 is an abundant number, since it is smaller than the sum of its proper divisors (918164941378).

868534403870 is a wasteful number, since it uses less digits than its factorization.

868534403870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12407634355.

The product of its (nonzero) digits is 15482880, while the sum is 56.

The spelling of 868534403870 in words is "eight hundred sixty-eight billion, five hundred thirty-four million, four hundred three thousand, eight hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 12407634341 24815268682 62038171705 86853440387 124076343410 173706880774 434267201935 868534403870