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212311102 = 2891398581
BaseRepresentation
bin11001010011110…
…01110000111110
3112210111112002011
430221321300332
5413322423402
633022321434
75155420543
oct1451716076
9483445064
10212311102
11a9931523
125b12927a
1334ca7a93
14202a8bca
151398bed7
hexca79c3e

212311102 has 16 divisors (see below), whose sum is σ = 324399600. Its totient is φ = 104195520.

The previous prime is 212311093. The next prime is 212311103. The reversal of 212311102 is 201113212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212311103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20452 + ... + 29032.

It is an arithmetic number, because the mean of its divisors is an integer number (20274975).

Almost surely, 2212311102 is an apocalyptic number.

212311102 is a deficient number, since it is larger than the sum of its proper divisors (112088498).

212311102 is a wasteful number, since it uses less digits than its factorization.

212311102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8811.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 212311102 is about 14570.8991486456. The cubic root of 212311102 is about 596.5647226906.

Adding to 212311102 its reverse (201113212), we get a palindrome (413424314).

It can be divided in two parts, 2123 and 11102, that added together give a square (13225 = 1152).

The spelling of 212311102 in words is "two hundred twelve million, three hundred eleven thousand, one hundred two".

Divisors: 1 2 89 139 178 278 8581 12371 17162 24742 763709 1192759 1527418 2385518 106155551 212311102