Search a number
-
+
13130221311312 = 243743908791619
BaseRepresentation
bin1011111100010001111000…
…1011010101010101010000
31201111020101200212112221120
42333010132023111111100
53210111143123430222
643531535043122240
72523425060443260
oct277043613252520
951436350775846
1013130221311312
11420254a698336
121580884673380
13743236669491
14335712a5d7a0
1517b831b6415c
hexbf11e2d5550

13130221311312 has 80 divisors (see below), whose sum is σ = 39666936629760. Its totient is φ = 3664247803776.

The previous prime is 13130221311107. The next prime is 13130221311341. The reversal of 13130221311312 is 21311312203131.

13130221311312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×131302213113122 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454381362 + ... + 454410257.

It is an arithmetic number, because the mean of its divisors is an integer number (495836707872).

Almost surely, 213130221311312 is an apocalyptic number.

13130221311312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13130221311312 is an abundant number, since it is smaller than the sum of its proper divisors (26536715318448).

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

13130221311312 is a wasteful number, since it uses less digits than its factorization.

13130221311312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908791680 (or 908791674 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 13130221311312 its reverse (21311312203131), we get a palindrome (34441533514443).

The spelling of 13130221311312 in words is "thirteen trillion, one hundred thirty billion, two hundred twenty-one million, three hundred eleven thousand, three hundred twelve".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 43 48 56 84 86 112 129 168 172 258 301 336 344 516 602 688 903 1032 1204 1806 2064 2408 3612 4816 7224 14448 908791619 1817583238 2726374857 3635166476 5452749714 6361541333 7270332952 10905499428 12723082666 14540665904 19084623999 21810998856 25446165332 38169247998 39078039617 43621997712 50892330664 76338495996 78156079234 101784661328 117234118851 152676991992 156312158468 234468237702 273546277319 305353983984 312624316936 468936475404 547092554638 625248633872 820638831957 937872950808 1094185109276 1641277663914 1875745901616 2188370218552 3282555327828 4376740437104 6565110655656 13130221311312