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78095940 = 223513591697
BaseRepresentation
bin1001010011110…
…10011001000100
312102221200111020
410221322121010
5124443032230
611425511140
71635542646
oct451723104
9172850436
1078095940
11400a06aa
12221a24b0
1313244820
14a52c896
156cc9810
hex4a7a644

78095940 has 96 divisors (see below), whose sum is σ = 239621760. Its totient is φ = 18886656.

The previous prime is 78095923. The next prime is 78095951. The reversal of 78095940 is 4959087.

78095940 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

78095940 is a modest number, since divided by 95940 gives 780 as remainder.

78095940 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 78095892 and 78095901.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45172 + ... + 46868.

It is an arithmetic number, because the mean of its divisors is an integer number (2496060).

Almost surely, 278095940 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 78095940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119810880).

78095940 is an abundant number, since it is smaller than the sum of its proper divisors (161525820).

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

78095940 is a wasteful number, since it uses less digits than its factorization.

78095940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1781 (or 1779 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 78095940 is about 8837.1907300906. The cubic root of 78095940 is about 427.4409754014.

The spelling of 78095940 in words is "seventy-eight million, ninety-five thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 59 60 65 78 118 130 156 177 195 236 260 295 354 390 590 708 767 780 885 1180 1534 1697 1770 2301 3068 3394 3540 3835 4602 5091 6788 7670 8485 9204 10182 11505 15340 16970 20364 22061 23010 25455 33940 44122 46020 50910 66183 88244 100123 101820 110305 132366 200246 220610 264732 300369 330915 400492 441220 500615 600738 661830 1001230 1201476 1301599 1323660 1501845 2002460 2603198 3003690 3904797 5206396 6007380 6507995 7809594 13015990 15619188 19523985 26031980 39047970 78095940