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72007000 = 23531329191
BaseRepresentation
bin1000100101010…
…11110101011000
312000111100000221
410102223311120
5121413211000
611051205424
71533022642
oct422536530
9160440027
1072007000
1137711a1a
1220146874
1311bc21c0
1497c5892
1564c561a
hex44abd58

72007000 has 128 divisors (see below), whose sum is σ = 188697600. Its totient is φ = 25536000.

The previous prime is 72006973. The next prime is 72007003. The reversal of 72007000 is 70027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72007003) 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 31 ways as a sum of consecutive naturals, for example, 376905 + ... + 377095.

It is an arithmetic number, because the mean of its divisors is an integer number (1474200).

Almost surely, 272007000 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 72007000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94348800).

72007000 is an abundant number, since it is smaller than the sum of its proper divisors (116690600).

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

72007000 is a wasteful number, since it uses less digits than its factorization.

72007000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 98, while the sum is 16.

The square root of 72007000 is about 8485.6938431692. The cubic root of 72007000 is about 416.0302461983.

Adding to 72007000 its reverse (70027), we get a palindrome (72077027).

The spelling of 72007000 in words is "seventy-two million, seven thousand".

Divisors: 1 2 4 5 8 10 13 20 25 26 29 40 50 52 58 65 100 104 116 125 130 145 191 200 232 250 260 290 325 377 382 500 520 580 650 725 754 764 955 1000 1160 1300 1450 1508 1528 1625 1885 1910 2483 2600 2900 3016 3250 3625 3770 3820 4775 4966 5539 5800 6500 7250 7540 7640 9425 9550 9932 11078 12415 13000 14500 15080 18850 19100 19864 22156 23875 24830 27695 29000 37700 38200 44312 47125 47750 49660 55390 62075 72007 75400 94250 95500 99320 110780 124150 138475 144014 188500 191000 221560 248300 276950 288028 310375 360035 377000 496600 553900 576056 620750 692375 720070 1107800 1241500 1384750 1440140 1800175 2483000 2769500 2880280 3600350 5539000 7200700 9000875 14401400 18001750 36003500 72007000