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8770028 = 2217128971
BaseRepresentation
bin100001011101…
…000111101100
3121111120012212
4201131013230
54221120103
6511545552
7134354411
oct41350754
917446185
108770028
114a50063
122b2b2b8
131a80a87
141244108
15b837d8
hex85d1ec

8770028 has 12 divisors (see below), whose sum is σ = 16250472. Its totient is φ = 4127040.

The previous prime is 8770009. The next prime is 8770033. The reversal of 8770028 is 8200778.

It is a happy number.

8770028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×87700282 = 153826782241568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8769976 and 8770003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64418 + ... + 64553.

It is an arithmetic number, because the mean of its divisors is an integer number (1354206).

Almost surely, 28770028 is an apocalyptic number.

It is an amenable number.

8770028 is a deficient number, since it is larger than the sum of its proper divisors (7480444).

8770028 is a wasteful number, since it uses less digits than its factorization.

8770028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128992 (or 128990 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 8770028 is about 2961.4233064525. The cubic root of 8770028 is about 206.2213663341.

The spelling of 8770028 in words is "eight million, seven hundred seventy thousand, twenty-eight".

Divisors: 1 2 4 17 34 68 128971 257942 515884 2192507 4385014 8770028