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72714443 = 411773523
BaseRepresentation
bin1000101010110…
…00100011001011
312001211021110112
410111120203023
5122103330233
611114304535
71542030314
oct425304313
9161737415
1072714443
113805548a
122042814b
13120ac1c9
14992b60b
1565b5048
hex45588cb

72714443 has 4 divisors (see below), whose sum is σ = 74488008. Its totient is φ = 70940880.

The previous prime is 72714427. The next prime is 72714451. The reversal of 72714443 is 34441727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34441727 = 82341849.

It is a cyclic number.

It is not a de Polignac number, because 72714443 - 24 = 72714427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72714413) 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, 886721 + ... + 886802.

It is an arithmetic number, because the mean of its divisors is an integer number (18622002).

Almost surely, 272714443 is an apocalyptic number.

72714443 is a deficient number, since it is larger than the sum of its proper divisors (1773565).

72714443 is a wasteful number, since it uses less digits than its factorization.

72714443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773564.

The product of its digits is 18816, while the sum is 32.

The square root of 72714443 is about 8527.2764116100. The cubic root of 72714443 is about 417.3882579508.

The spelling of 72714443 in words is "seventy-two million, seven hundred fourteen thousand, four hundred forty-three".

Divisors: 1 41 1773523 72714443