Search a number
-
+
13023223122220 = 2256199011078151
BaseRepresentation
bin1011110110000011010010…
…0101101000100100101100
31201010000012210220101000021
42331200310211220210230
53201333030104402340
643410441444411524
72512616416030153
oct275406445504454
951100183811007
1013023223122220
114171132a35193
121563ba30a6ba4
1373611403915c
143304823d459a
15178b6d36be4a
hexbd83496892c

13023223122220 has 48 divisors (see below), whose sum is σ = 27799942314816. Its totient is φ = 5123368800000.

The previous prime is 13023223122083. The next prime is 13023223122337. The reversal of 13023223122220 is 2222132232031.

It is a super-2 number, since 2×130232231222202 (a number of 27 digits) contains 22 as substring.

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, 11540145 + ... + 12618295.

It is an arithmetic number, because the mean of its divisors is an integer number (579165464892).

Almost surely, 213023223122220 is an apocalyptic number.

13023223122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13023223122220 is an abundant number, since it is smaller than the sum of its proper divisors (14776719192596).

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

13023223122220 is a wasteful number, since it uses less digits than its factorization.

13023223122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088122 (or 1088120 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 13023223122220 its reverse (2222132232031), we get a palindrome (15245355354251).

The spelling of 13023223122220 in words is "thirteen trillion, twenty-three billion, two hundred twenty-three million, one hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 61 122 244 305 610 1220 9901 19802 39604 49505 99010 198020 603961 1078151 1207922 2156302 2415844 3019805 4312604 5390755 6039610 10781510 12079220 21563020 65767211 131534422 263068844 328836055 657672110 1315344220 10674773051 21349546102 42699092204 53373865255 106747730510 213495461020 651161156111 1302322312222 2604644624444 3255805780555 6511611561110 13023223122220