Search a number
-
+
2161450100060 = 2251811516139383
BaseRepresentation
bin11111011101000000011…
…101110010010101011100
321122122002011200201021122
4133131000131302111130
5240403122211200220
64332542332550112
7312105514466156
oct37350035622534
97578064621248
102161450100060
11763736261649
122aaaa1322338
13128a93071564
1476886bd7ad6
153b356e09425
hex1f74077255c

2161450100060 has 48 divisors (see below), whose sum is σ = 4564539749952. Its totient is φ = 859724812800.

The previous prime is 2161450100057. The next prime is 2161450100063. The reversal of 2161450100060 is 600010541612.

It is an interprime number because it is at equal distance from previous prime (2161450100057) and next prime (2161450100063).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161450100063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54863129 + ... + 54902511.

It is an arithmetic number, because the mean of its divisors is an integer number (95094578124).

Almost surely, 22161450100060 is an apocalyptic number.

2161450100060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2161450100060 is an abundant number, since it is smaller than the sum of its proper divisors (2403089649892).

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

2161450100060 is a wasteful number, since it uses less digits than its factorization.

2161450100060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54734 (or 54732 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 2161450100060 its reverse (600010541612), we get a palindrome (2761460641672).

The spelling of 2161450100060 in words is "two trillion, one hundred sixty-one billion, four hundred fifty million, one hundred thousand, sixty".

Divisors: 1 2 4 5 10 20 181 362 724 905 1810 3620 15161 30322 39383 60644 75805 78766 151610 157532 196915 303220 393830 787660 2744141 5488282 7128323 10976564 13720705 14256646 27441410 28513292 35641615 54882820 71283230 142566460 597085663 1194171326 2388342652 2985428315 5970856630 11941713260 108072505003 216145010006 432290020012 540362525015 1080725050030 2161450100060