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72267070 = 25193111223
BaseRepresentation
bin1000100111010…
…11010100111110
312000222112210011
410103223110332
5122000021240
611100533434
71535155111
oct423532476
9160875704
1072267070
113787a357
122025127a
1311c836a5
149852578
1565276ea
hex44eb53e

72267070 has 32 divisors (see below), whose sum is σ = 137479680. Its totient is φ = 27275040.

The previous prime is 72267061. The next prime is 72267077. The reversal of 72267070 is 7076227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72267077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58479 + ... + 59701.

It is an arithmetic number, because the mean of its divisors is an integer number (4296240).

Almost surely, 272267070 is an apocalyptic number.

72267070 is a deficient number, since it is larger than the sum of its proper divisors (65212610).

72267070 is a wasteful number, since it uses less digits than its factorization.

72267070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560.

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 72267070 is about 8501.0040583451. The cubic root of 72267070 is about 416.5305076884.

The spelling of 72267070 in words is "seventy-two million, two hundred sixty-seven thousand, seventy".

Divisors: 1 2 5 10 19 38 95 190 311 622 1223 1555 2446 3110 5909 6115 11818 12230 23237 29545 46474 59090 116185 232370 380353 760706 1901765 3803530 7226707 14453414 36133535 72267070