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72750223 = 713799453
BaseRepresentation
bin1000101011000…
…01010010001111
312001220002112201
410111201102033
5122111001343
611115142331
71542236530
oct425412217
9161802481
1072750223
113807a357
12204449a7
13120c2590
14993a687
1565c094d
hex456148f

72750223 has 8 divisors (see below), whose sum is σ = 89538848. Its totient is φ = 57560544.

The previous prime is 72750203. The next prime is 72750269. The reversal of 72750223 is 32205727.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72750223 - 29 = 72749711 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72750191 and 72750200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72750203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399636 + ... + 399817.

It is an arithmetic number, because the mean of its divisors is an integer number (11192356).

Almost surely, 272750223 is an apocalyptic number.

72750223 is a deficient number, since it is larger than the sum of its proper divisors (16788625).

72750223 is a wasteful number, since it uses less digits than its factorization.

72750223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799473.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 72750223 is about 8529.3741270975. The cubic root of 72750223 is about 417.4567069981.

The spelling of 72750223 in words is "seventy-two million, seven hundred fifty thousand, two hundred twenty-three".

Divisors: 1 7 13 91 799453 5596171 10392889 72750223