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72102383 is a prime number
BaseRepresentation
bin1000100110000…
…11000111101111
312000200011212122
410103003013233
5121424234013
611053223155
71533601013
oct423030757
9160604778
1072102383
1137777651
1220191abb
1311c26742
14980c543
1564e3a08
hex44c31ef

72102383 has 2 divisors, whose sum is σ = 72102384. Its totient is φ = 72102382.

The previous prime is 72102361. The next prime is 72102391. The reversal of 72102383 is 38320127.

It is a strong prime.

It is an emirp because it is prime and its reverse (38320127) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72102383 - 28 = 72102127 is a prime.

It is equal to p4234364 and since 72102383 and 4234364 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72102983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36051191 + 36051192.

It is an arithmetic number, because the mean of its divisors is an integer number (36051192).

Almost surely, 272102383 is an apocalyptic number.

72102383 is a deficient number, since it is larger than the sum of its proper divisors (1).

72102383 is an equidigital number, since it uses as much as digits as its factorization.

72102383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 72102383 is about 8491.3122071915. The cubic root of 72102383 is about 416.2138612374.

The spelling of 72102383 in words is "seventy-two million, one hundred two thousand, three hundred eighty-three".