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70676728 = 23173223229
BaseRepresentation
bin1000011011001…
…11000011111000
311220222202020121
410031213003320
5121043123403
611002503024
71515512413
oct415470370
9156882217
1070676728
1136993521
121b804a74
1311847865
14955ab7a
1563113bd
hex43670f8

70676728 has 32 divisors (see below), whose sum is σ = 134467200. Its totient is φ = 34823808.

The previous prime is 70676707. The next prime is 70676729. The reversal of 70676728 is 82767607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70676729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308518 + ... + 308746.

It is an arithmetic number, because the mean of its divisors is an integer number (4202100).

Almost surely, 270676728 is an apocalyptic number.

It is an amenable number.

70676728 is a deficient number, since it is larger than the sum of its proper divisors (63790472).

70676728 is a wasteful number, since it uses less digits than its factorization.

70676728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 43.

The square root of 70676728 is about 8406.9452240395. The cubic root of 70676728 is about 413.4523631061.

The spelling of 70676728 in words is "seventy million, six hundred seventy-six thousand, seven hundred twenty-eight".

Divisors: 1 2 4 8 173 223 229 346 446 458 692 892 916 1384 1784 1832 38579 39617 51067 77158 79234 102134 154316 158468 204268 308632 316936 408536 8834591 17669182 35338364 70676728