Search a number
-
+
232222120 = 23513617321
BaseRepresentation
bin11011101011101…
…10110110101000
3121011222002212021
431311312312220
5433422101440
635013154224
75516566264
oct1565666650
9534862767
10232222120
1110a0a0a09
126592b974
1339159850
1422bad0a4
15155c184a
hexdd76da8

232222120 has 64 divisors (see below), whose sum is σ = 571994640. Its totient is φ = 84326400.

The previous prime is 232222103. The next prime is 232222127. The reversal of 232222120 is 21222232.

It can be written as a sum of positive squares in 8 ways, for example, as 6441444 + 225780676 = 2538^2 + 15026^2 .

It is a super-2 number, since 2×2322221202 = 107854226034588800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 232222094 and 232222103.

It is not an unprimeable number, because it can be changed into a prime (232222127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28060 + ... + 35380.

Almost surely, 2232222120 is an apocalyptic number.

232222120 is a gapful number since it is divisible by the number (20) 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 232222120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285997320).

232222120 is an abundant number, since it is smaller than the sum of its proper divisors (339772520).

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

232222120 is a wasteful number, since it uses less digits than its factorization.

232222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7406 (or 7402 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 232222120 is about 15238.8359135467. The cubic root of 232222120 is about 614.6594011550.

Adding to 232222120 its reverse (21222232), we get a palindrome (253444352).

It can be divided in two parts, 2322 and 22120, that added together give a palindrome (24442).

The spelling of 232222120 in words is "two hundred thirty-two million, two hundred twenty-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 61 65 104 122 130 244 260 305 488 520 610 793 1220 1586 2440 3172 3965 6344 7321 7930 14642 15860 29284 31720 36605 58568 73210 95173 146420 190346 292840 380692 446581 475865 761384 893162 951730 1786324 1903460 2232905 3572648 3806920 4465810 5805553 8931620 11611106 17863240 23222212 29027765 46444424 58055530 116111060 232222120