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82257032 = 23111325531
BaseRepresentation
bin1001110011100…
…10010010001000
312201210002102202
410321302102020
5132024211112
612055015332
72016113264
oct471622210
9181702382
1082257032
1142482a20
122366a548
1314070800
14acd30a4
15734c6c2
hex4e72488

82257032 has 48 divisors (see below), whose sum is σ = 182224080. Its totient is φ = 34507200.

The previous prime is 82257017. The next prime is 82257047. The reversal of 82257032 is 23075228.

It is an interprime number because it is at equal distance from previous prime (82257017) and next prime (82257047).

It is a junction number, because it is equal to n+sod(n) for n = 82256986 and 82257004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12107 + ... + 17637.

It is an arithmetic number, because the mean of its divisors is an integer number (3796335).

Almost surely, 282257032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82257032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91112040).

82257032 is an abundant number, since it is smaller than the sum of its proper divisors (99967048).

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

82257032 is a wasteful number, since it uses less digits than its factorization.

82257032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5574 (or 5557 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 82257032 is about 9069.5662520321. The cubic root of 82257032 is about 434.9016063185.

The spelling of 82257032 in words is "eighty-two million, two hundred fifty-seven thousand, thirty-two".

Divisors: 1 2 4 8 11 13 22 26 44 52 88 104 143 169 286 338 572 676 1144 1352 1859 3718 5531 7436 11062 14872 22124 44248 60841 71903 121682 143806 243364 287612 486728 575224 790933 934739 1581866 1869478 3163732 3738956 6327464 7477912 10282129 20564258 41128516 82257032