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72853063 = 188938567
BaseRepresentation
bin1000101011110…
…10011001000111
312002002022121121
410111322121013
5122122244223
611121254411
71543145413
oct425723107
9162068547
1072853063
113813a648
1220494407
131212a32a
149965d43
1565e115d
hex457a647

72853063 has 4 divisors (see below), whose sum is σ = 72893520. Its totient is φ = 72812608.

The previous prime is 72853057. The next prime is 72853091. The reversal of 72853063 is 36035827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36035827 = 178920143.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-72853063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72853003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17395 + ... + 21172.

It is an arithmetic number, because the mean of its divisors is an integer number (18223380).

Almost surely, 272853063 is an apocalyptic number.

72853063 is a deficient number, since it is larger than the sum of its proper divisors (40457).

72853063 is a wasteful number, since it uses less digits than its factorization.

72853063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40456.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 72853063 is about 8535.4005764229. The cubic root of 72853063 is about 417.6533205276.

The spelling of 72853063 in words is "seventy-two million, eight hundred fifty-three thousand, sixty-three".

Divisors: 1 1889 38567 72853063