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76499660 = 22517713169
BaseRepresentation
bin1001000111101…
…00101011001100
312022221120210202
410203310223030
5124040442120
611331353032
71616144036
oct443645314
9168846722
1076499660
113a200366
1221752778
1312b06093
14a234c56
156ab1875
hex48f4acc

76499660 has 48 divisors (see below), whose sum is σ = 172549440. Its totient is φ = 28385280.

The previous prime is 76499629. The next prime is 76499699. The reversal of 76499660 is 6699467.

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, 22556 + ... + 25724.

It is an arithmetic number, because the mean of its divisors is an integer number (3594780).

Almost surely, 276499660 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 76499660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86274720).

76499660 is an abundant number, since it is smaller than the sum of its proper divisors (96049780).

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

76499660 is a wasteful number, since it uses less digits than its factorization.

76499660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3266 (or 3264 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 76499660 is about 8746.4084057400. The cubic root of 76499660 is about 424.5086085353.

The spelling of 76499660 in words is "seventy-six million, four hundred ninety-nine thousand, six hundred sixty".

Divisors: 1 2 4 5 10 17 20 34 68 71 85 142 170 284 340 355 710 1207 1420 2414 3169 4828 6035 6338 12070 12676 15845 24140 31690 53873 63380 107746 215492 224999 269365 449998 538730 899996 1077460 1124995 2249990 3824983 4499980 7649966 15299932 19124915 38249830 76499660