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76072620 = 223513175737
BaseRepresentation
bin1001000100011…
…00011010101100
312022010220000110
410202030122230
5123433310440
611314300020
71612415031
oct442143254
9168126013
1076072620
1139a39538
1221587610
13129b68b0
14a163388
156a2a080
hex488c6ac

76072620 has 96 divisors (see below), whose sum is σ = 242923968. Its totient is φ = 17620992.

The previous prime is 76072583. The next prime is 76072621. The reversal of 76072620 is 2627067.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (76072621) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 10392 + ... + 16128.

It is an arithmetic number, because the mean of its divisors is an integer number (2530458).

Almost surely, 276072620 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 76072620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121461984).

76072620 is an abundant number, since it is smaller than the sum of its proper divisors (166851348).

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

76072620 is a wasteful number, since it uses less digits than its factorization.

76072620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5779 (or 5777 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 76072620 is about 8721.9619352529. The cubic root of 76072620 is about 423.7172301736.

Adding to 76072620 its reverse (2627067), we get a palindrome (78699687).

The spelling of 76072620 in words is "seventy-six million, seventy-two thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 17 20 26 30 34 39 51 52 60 65 68 78 85 102 130 156 170 195 204 221 255 260 340 390 442 510 663 780 884 1020 1105 1326 2210 2652 3315 4420 5737 6630 11474 13260 17211 22948 28685 34422 57370 68844 74581 86055 97529 114740 149162 172110 195058 223743 292587 298324 344220 372905 390116 447486 487645 585174 745810 894972 975290 1118715 1170348 1267877 1462935 1491620 1950580 2237430 2535754 2925870 3803631 4474860 5071508 5851740 6339385 7607262 12678770 15214524 19018155 25357540 38036310 76072620