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531702380 = 2251110123929
BaseRepresentation
bin11111101100010…
…010001001101100
31101001111021112202
4133230102021230
52042103434010
6124432121032
716114252466
oct3754221154
91331437482
10531702380
1125314a960
1212a096178
1386204bc1
1450889136
1531a2b6a5
hex1fb1226c

531702380 has 48 divisors (see below), whose sum is σ = 1230193440. Its totient is φ = 191424000.

The previous prime is 531702373. The next prime is 531702397. The reversal of 531702380 is 83207135.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10256 + ... + 34184.

It is an arithmetic number, because the mean of its divisors is an integer number (25629030).

Almost surely, 2531702380 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 531702380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (615096720).

531702380 is an abundant number, since it is smaller than the sum of its proper divisors (698491060).

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

531702380 is a wasteful number, since it uses less digits than its factorization.

531702380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24050 (or 24048 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 531702380 is about 23058.6725550280. The cubic root of 531702380 is about 810.1327730326.

The spelling of 531702380 in words is "five hundred thirty-one million, seven hundred two thousand, three hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 101 110 202 220 404 505 1010 1111 2020 2222 4444 5555 11110 22220 23929 47858 95716 119645 239290 263219 478580 526438 1052876 1316095 2416829 2632190 4833658 5264380 9667316 12084145 24168290 26585119 48336580 53170238 106340476 132925595 265851190 531702380