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76215412 = 22713375659
BaseRepresentation
bin1001000101011…
…11010001110100
312022102010220001
410202233101310
5124002343122
611321321044
71613551240
oct442572164
9168363801
1076215412
113a026849
1221636184
1312a368a0
14a19d420
156a57527
hex48af474

76215412 has 48 divisors (see below), whose sum is σ = 168622720. Its totient is φ = 29331072.

The previous prime is 76215409. The next prime is 76215421. The reversal of 76215412 is 21451267.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10639 + ... + 16297.

Almost surely, 276215412 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 76215412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84311360).

76215412 is an abundant number, since it is smaller than the sum of its proper divisors (92407308).

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

76215412 is a wasteful number, since it uses less digits than its factorization.

76215412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5720 (or 5718 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 76215412 is about 8730.1438705213. The cubic root of 76215412 is about 423.9821770721.

Adding to 76215412 its reverse (21451267), we get a palindrome (97666679).

The spelling of 76215412 in words is "seventy-six million, two hundred fifteen thousand, four hundred twelve".

Divisors: 1 2 4 7 13 14 26 28 37 52 74 91 148 182 259 364 481 518 962 1036 1924 3367 5659 6734 11318 13468 22636 39613 73567 79226 147134 158452 209383 294268 418766 514969 837532 1029938 1465681 2059876 2721979 2931362 5443958 5862724 10887916 19053853 38107706 76215412