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7070390028 = 22321328875233
BaseRepresentation
bin1101001010110110…
…11001011100001100
3200020202012000202100
412211123121130030
5103440004440103
63125330555100
7340132216002
oct64533313414
920222160670
107070390028
112aa9061749
121453a38a90
13888a80150
144b1040a72
152b5ac05a3
hex1a56d970c

7070390028 has 72 divisors (see below), whose sum is σ = 19257519008. Its totient is φ = 2174335488.

The previous prime is 7070390011. The next prime is 7070390081. The reversal of 7070390028 is 8200930707.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7070389974 and 7070390001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1348500 + ... + 1353732.

Almost surely, 27070390028 is an apocalyptic number.

7070390028 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

7070390028 is an abundant number, since it is smaller than the sum of its proper divisors (12187128980).

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

7070390028 is a wasteful number, since it uses less digits than its factorization.

7070390028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8143 (or 8138 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 7070390028 is about 84085.6113018155. The cubic root of 7070390028 is about 1919.3217754248.

The spelling of 7070390028 in words is "seven billion, seventy million, three hundred ninety thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 2887 5233 5774 8661 10466 11548 15699 17322 20932 25983 31398 34644 37531 47097 51966 62796 68029 75062 94194 103932 112593 136058 150124 188388 204087 225186 272116 337779 408174 450372 612261 675558 816348 1224522 1351116 2449044 15107671 30215342 45323013 60430684 90646026 135969039 181292052 196399723 271938078 392799446 543876156 589199169 785598892 1178398338 1767597507 2356796676 3535195014 7070390028