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73006128 = 24321359661
BaseRepresentation
bin1000101100111…
…11110000110000
312002101002120200
410112133300300
5122142144003
611124435200
71544353566
oct426376060
9162332520
1073006128
1138234648
1220548b00
1312181bc0
1499a5a36
1566216a3
hex459fc30

73006128 has 120 divisors (see below), whose sum is σ = 224100240. Its totient is φ = 22049280.

The previous prime is 73006127. The next prime is 73006159. The reversal of 73006128 is 82160037.

It is not an unprimeable number, because it can be changed into a prime (73006127) 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 23 ways as a sum of consecutive naturals, for example, 110118 + ... + 110778.

It is an arithmetic number, because the mean of its divisors is an integer number (1867502).

Almost surely, 273006128 is an apocalyptic number.

73006128 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73006128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112050120).

73006128 is an abundant number, since it is smaller than the sum of its proper divisors (151094112).

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

73006128 is a wasteful number, since it uses less digits than its factorization.

73006128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 73006128 is about 8544.3623518669. The cubic root of 73006128 is about 417.9456138272.

The spelling of 73006128 in words is "seventy-three million, six thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 36 39 48 52 59 72 78 104 117 118 144 156 177 208 234 236 312 354 468 472 531 624 661 708 767 936 944 1062 1322 1416 1534 1872 1983 2124 2301 2644 2832 3068 3966 4248 4602 5288 5949 6136 6903 7932 8496 8593 9204 10576 11898 12272 13806 15864 17186 18408 23796 25779 27612 31728 34372 36816 38999 47592 51558 55224 68744 77337 77998 95184 103116 110448 116997 137488 154674 155996 206232 233994 309348 311992 350991 412464 467988 506987 618696 623984 701982 935976 1013974 1237392 1403964 1520961 1871952 2027948 2807928 3041922 4055896 4562883 5615856 6083844 8111792 9125766 12167688 18251532 24335376 36503064 73006128