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72092293 = 713792223
BaseRepresentation
bin1000100110000…
…00101010000101
312000122200000221
410103000222011
5121423423133
611053104341
71533526420
oct423005205
9160580027
1072092293
1137770009
12201880b1
1311c21c80
1498089b7
1564e0a2d
hex44c0a85

72092293 has 8 divisors (see below), whose sum is σ = 88729088. Its totient is φ = 57039984.

The previous prime is 72092261. The next prime is 72092303. The reversal of 72092293 is 39229027.

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 72092293 - 25 = 72092261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72192293) 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, 396021 + ... + 396202.

It is an arithmetic number, because the mean of its divisors is an integer number (11091136).

Almost surely, 272092293 is an apocalyptic number.

It is an amenable number.

72092293 is a deficient number, since it is larger than the sum of its proper divisors (16636795).

72092293 is a wasteful number, since it uses less digits than its factorization.

72092293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792243.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 72092293 is about 8490.7180497294. The cubic root of 72092293 is about 416.1944453568.

The spelling of 72092293 in words is "seventy-two million, ninety-two thousand, two hundred ninety-three".

Divisors: 1 7 13 91 792223 5545561 10298899 72092293