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72254083 = 116568553
BaseRepresentation
bin1000100111010…
…00001010000011
312000221212222011
410103220022003
5121444112313
611100353351
71535102206
oct423501203
9160855864
1072254083
1137870620
1220245857
1311c7a7c5
14984b93d
15652393d
hex44e8283

72254083 has 4 divisors (see below), whose sum is σ = 78822648. Its totient is φ = 65685520.

The previous prime is 72254041. The next prime is 72254089. The reversal of 72254083 is 38045227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38045227 = 113458657.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-72254083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72254089) 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, 3284266 + ... + 3284287.

It is an arithmetic number, because the mean of its divisors is an integer number (19705662).

Almost surely, 272254083 is an apocalyptic number.

72254083 is a deficient number, since it is larger than the sum of its proper divisors (6568565).

72254083 is a wasteful number, since it uses less digits than its factorization.

72254083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6568564.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 72254083 is about 8500.2401730775. The cubic root of 72254083 is about 416.5055548490.

Subtracting from 72254083 its reverse (38045227), we obtain a triangular number (34208856 = T8271).

The spelling of 72254083 in words is "seventy-two million, two hundred fifty-four thousand, eighty-three".

Divisors: 1 11 6568553 72254083