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232131022 = 21729311757
BaseRepresentation
bin11011101011000…
…00100111001110
3121011210110220021
431311200213032
5433411143042
635011212354
75516036554
oct1565404716
9534713807
10232131022
1110a039522
12658a70ba
1339127246
1422b87bd4
15155a4867
hexdd609ce

232131022 has 32 divisors (see below), whose sum is σ = 383123520. Its totient is φ = 104993280.

The previous prime is 232131013. The next prime is 232131023. The reversal of 232131022 is 220131232.

It is a super-2 number, since 2×2321310222 = 107769622749528968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 232130987 and 232131005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232131023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306268 + ... + 307024.

It is an arithmetic number, because the mean of its divisors is an integer number (11972610).

Almost surely, 2232131022 is an apocalyptic number.

232131022 is a deficient number, since it is larger than the sum of its proper divisors (150992498).

232131022 is a wasteful number, since it uses less digits than its factorization.

232131022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 232131022 is about 15235.8466125122. The cubic root of 232131022 is about 614.5790160971.

Adding to 232131022 its reverse (220131232), we get a palindrome (452262254).

The spelling of 232131022 in words is "two hundred thirty-two million, one hundred thirty-one thousand, twenty-two".

Divisors: 1 2 17 29 34 58 311 493 622 757 986 1514 5287 9019 10574 12869 18038 21953 25738 43906 153323 235427 306646 373201 470854 746402 4002259 6827383 8004518 13654766 116065511 232131022