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10890064860 = 2235181501081
BaseRepresentation
bin10100010010001100…
…10011001111011100
31001002221120121120120
422021012103033130
5134300324033420
65000335514540
7533603011143
oct121106231734
931087517516
1010890064860
114689180a04
12213b088a50
13104721597c
1475445475a
1543b0c5d40
hex2891933dc

10890064860 has 24 divisors (see below), whose sum is σ = 30492181776. Its totient is φ = 2904017280.

The previous prime is 10890064859. The next prime is 10890064921. The reversal of 10890064860 is 6846009801.

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, 90750481 + ... + 90750600.

It is an arithmetic number, because the mean of its divisors is an integer number (1270507574).

Almost surely, 210890064860 is an apocalyptic number.

10890064860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10890064860 is an abundant number, since it is smaller than the sum of its proper divisors (19602116916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10890064860 is a wasteful number, since it uses less digits than its factorization.

10890064860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181501093 (or 181501091 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The spelling of 10890064860 in words is "ten billion, eight hundred ninety million, sixty-four thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 181501081 363002162 544503243 726004324 907505405 1089006486 1815010810 2178012972 2722516215 3630021620 5445032430 10890064860