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78081060 = 223510911939
BaseRepresentation
bin1001010011101…
…10110000100100
312102220221002010
410221312300210
5124442043220
611425314220
71635451401
oct451666044
9172827063
1078081060
1140090502
1222195970
131323ab15
14a5272a8
156cc51e0
hex4a76c24

78081060 has 48 divisors (see below), whose sum is σ = 220651200. Its totient is φ = 20628864.

The previous prime is 78081049. The next prime is 78081071. The reversal of 78081060 is 6018087.

It is an interprime number because it is at equal distance from previous prime (78081049) and next prime (78081071).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 571 + ... + 12509.

It is an arithmetic number, because the mean of its divisors is an integer number (4596900).

Almost surely, 278081060 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 78081060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110325600).

78081060 is an abundant number, since it is smaller than the sum of its proper divisors (142570140).

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

78081060 is a wasteful number, since it uses less digits than its factorization.

78081060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12060 (or 12058 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 78081060 is about 8836.3487934780. The cubic root of 78081060 is about 427.4138262064.

The spelling of 78081060 in words is "seventy-eight million, eighty-one thousand, sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 109 218 327 436 545 654 1090 1308 1635 2180 3270 6540 11939 23878 35817 47756 59695 71634 119390 143268 179085 238780 358170 716340 1301351 2602702 3904053 5205404 6506755 7808106 13013510 15616212 19520265 26027020 39040530 78081060