Search a number
-
+
213223131102 = 231989199910513
BaseRepresentation
bin1100011010010100010…
…1101100011111011110
3202101100212221100021210
43012211011230133132
511443140110143402
6241541531405250
721255603465432
oct3064505543736
9671325840253
10213223131102
1182477998323
12353a7bb3826
13171509b67c7
14a46a3309c2
15582e29e06c
hex31a516c7de

213223131102 has 64 divisors (see below), whose sum is σ = 454204800000. Its totient is φ = 66537427968.

The previous prime is 213223131097. The next prime is 213223131103. The reversal of 213223131102 is 201131322312.

213223131102 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213223131103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20276598 + ... + 20287110.

It is an arithmetic number, because the mean of its divisors is an integer number (7096950000).

Almost surely, 2213223131102 is an apocalyptic number.

213223131102 is an abundant number, since it is smaller than the sum of its proper divisors (240981668898).

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

213223131102 is a wasteful number, since it uses less digits than its factorization.

213223131102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12625.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 213223131102 its reverse (201131322312), we get a palindrome (414354453414).

The spelling of 213223131102 in words is "two hundred thirteen billion, two hundred twenty-three million, one hundred thirty-one thousand, one hundred two".

Divisors: 1 2 3 6 19 38 57 89 114 178 267 534 1691 1999 3382 3998 5073 5997 10146 10513 11994 21026 31539 37981 63078 75962 113943 177911 199747 227886 355822 399494 533733 599241 935657 1067466 1198482 1871314 2806971 3380309 5613942 6760618 10140927 17777483 20281854 21015487 35554966 42030974 53332449 63046461 106664898 126092922 399294253 798588506 1197882759 1870378343 2395765518 3740756686 5611135029 11222270058 35537188517 71074377034 106611565551 213223131102