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2131441312 = 257111366541
BaseRepresentation
bin111111100001011…
…0011011010100000
312111112200102210211
41333002303122200
513331122110222
6551300103504
7103550644420
oct17702633240
95445612724
102131441312
119a4163450
124b5994b94
1327c778ba0
14163112480
15c71c8277
hex7f0b36a0

2131441312 has 96 divisors (see below), whose sum is σ = 5634244224. Its totient is φ = 766540800.

The previous prime is 2131441259. The next prime is 2131441313.

2131441312 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (2131441313) 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, 1239 + ... + 65302.

It is an arithmetic number, because the mean of its divisors is an integer number (58690044).

Almost surely, 22131441312 is an apocalyptic number.

2131441312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131441312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2817122112).

2131441312 is an abundant number, since it is smaller than the sum of its proper divisors (3502802912).

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

2131441312 is a wasteful number, since it uses less digits than its factorization.

2131441312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66582 (or 66574 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 2131441312 is about 46167.5352601804. The cubic root of 2131441312 is about 1286.9384988885.

It can be divided in two parts, 21314 and 41312, that added together give a palindrome (62626).

The spelling of 2131441312 in words is "two billion, one hundred thirty-one million, four hundred forty-one thousand, three hundred twelve".

Divisors: 1 2 4 7 8 11 13 14 16 22 26 28 32 44 52 56 77 88 91 104 112 143 154 176 182 208 224 286 308 352 364 416 572 616 728 1001 1144 1232 1456 2002 2288 2464 2912 4004 4576 8008 16016 32032 66541 133082 266164 465787 532328 731951 865033 931574 1064656 1463902 1730066 1863148 2129312 2927804 3460132 3726296 5123657 5855608 6055231 6920264 7452592 9515363 10247314 11711216 12110462 13840528 14905184 19030726 20494628 23422432 24220924 27681056 38061452 40989256 48441848 66607541 76122904 81978512 96883696 133215082 152245808 163957024 193767392 266430164 304491616 532860328 1065720656 2131441312