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78934068 = 22332343739
BaseRepresentation
bin1001011010001…
…11000000110100
312111112021012000
410231013000310
5130201342233
611455455300
71645633323
oct455070064
9174467160
1078934068
1140613374
1222527530
1313479165
14a6aa0ba
156de2d13
hex4b47034

78934068 has 96 divisors (see below), whose sum is σ = 218803200. Its totient is φ = 24548832.

The previous prime is 78934067. The next prime is 78934081. The reversal of 78934068 is 86043987.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78934067) 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, 106443 + ... + 107181.

It is an arithmetic number, because the mean of its divisors is an integer number (2279200).

Almost surely, 278934068 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 78934068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109401600).

78934068 is an abundant number, since it is smaller than the sum of its proper divisors (139869132).

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

78934068 is a wasteful number, since it uses less digits than its factorization.

78934068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 78934068 is about 8884.4846783592. The cubic root of 78934068 is about 428.9646408336.

The spelling of 78934068 in words is "seventy-eight million, nine hundred thirty-four thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 23 27 36 43 46 54 69 86 92 108 129 138 172 207 258 276 387 414 516 621 739 774 828 989 1161 1242 1478 1548 1978 2217 2322 2484 2956 2967 3956 4434 4644 5934 6651 8868 8901 11868 13302 16997 17802 19953 26604 26703 31777 33994 35604 39906 50991 53406 63554 67988 79812 95331 101982 106812 127108 152973 190662 203964 285993 305946 381324 458919 571986 611892 730871 857979 917838 1143972 1461742 1715958 1835676 2192613 2923484 3431916 4385226 6577839 8770452 13155678 19733517 26311356 39467034 78934068