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83442260 = 22511379283
BaseRepresentation
bin1001111100100…
…11101001010100
312211000022021002
410332103221110
5132330123020
612140242432
72032150616
oct476235124
9184008232
1083442260
1143112450
1223b40418
1314397125
14b120db6
1574d3975
hex4f93a54

83442260 has 24 divisors (see below), whose sum is σ = 191159136. Its totient is φ = 30342560.

The previous prime is 83442241. The next prime is 83442283. The reversal of 83442260 is 6224438.

It is a super-2 number, since 2×834422602 = 13925221507815200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189422 + ... + 189861.

It is an arithmetic number, because the mean of its divisors is an integer number (7964964).

Almost surely, 283442260 is an apocalyptic number.

It is an amenable number.

83442260 is an abundant number, since it is smaller than the sum of its proper divisors (107716876).

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

83442260 is a wasteful number, since it uses less digits than its factorization.

83442260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379303 (or 379301 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 83442260 is about 9134.6735026491. The cubic root of 83442260 is about 436.9804619241.

Adding to 83442260 its reverse (6224438), we get a palindrome (89666698).

The spelling of 83442260 in words is "eighty-three million, four hundred forty-two thousand, two hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 379283 758566 1517132 1896415 3792830 4172113 7585660 8344226 16688452 20860565 41721130 83442260