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6978036 = 22313411091
BaseRepresentation
bin11010100111100111110100
3111010112001210
4122213213310
53241244121
6405321420
7113212062
oct32474764
914115053
106978036
113a3677a
122406270
1315a4220
14cd9032
1592c876
hex6a79f4

6978036 has 48 divisors (see below), whose sum is σ = 17978688. Its totient is φ = 2092800.

The previous prime is 6978031. The next prime is 6978047. The reversal of 6978036 is 6308796.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 6977985 and 6978003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6978031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5851 + ... + 6941.

It is an arithmetic number, because the mean of its divisors is an integer number (374556).

Almost surely, 26978036 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 6978036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8989344).

6978036 is an abundant number, since it is smaller than the sum of its proper divisors (11000652).

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

6978036 is a wasteful number, since it uses less digits than its factorization.

6978036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152 (or 1150 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 6978036 is about 2641.5972440931. The cubic root of 6978036 is about 191.0928342696.

The spelling of 6978036 in words is "six million, nine hundred seventy-eight thousand, thirty-six".

Divisors: 1 2 3 4 6 12 13 26 39 41 52 78 82 123 156 164 246 492 533 1066 1091 1599 2132 2182 3198 3273 4364 6396 6546 13092 14183 28366 42549 44731 56732 85098 89462 134193 170196 178924 268386 536772 581503 1163006 1744509 2326012 3489018 6978036