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5390791973 = 7770113139
BaseRepresentation
bin1010000010101000…
…01111010100100101
3111220200201121100222
411001110033110211
542020020320343
62250531214125
7250405655450
oct50124172445
914820647328
105390791973
112316a63886
121065447345
1367bac7c48
14391d4a497
152183eba68
hex14150f525

5390791973 has 4 divisors (see below), whose sum is σ = 6160905120. Its totient is φ = 4620678828.

The previous prime is 5390791951. The next prime is 5390792093. The reversal of 5390791973 is 3791970935.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5390791973 - 212 = 5390787877 is a prime.

It is a super-2 number, since 2×53907919732 = 58121276192322465458, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5399791973) 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, 385056563 + ... + 385056576.

It is an arithmetic number, because the mean of its divisors is an integer number (1540226280).

Almost surely, 25390791973 is an apocalyptic number.

It is an amenable number.

5390791973 is a deficient number, since it is larger than the sum of its proper divisors (770113147).

5390791973 is an equidigital number, since it uses as much as digits as its factorization.

5390791973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770113146.

The product of its (nonzero) digits is 1607445, while the sum is 53.

The square root of 5390791973 is about 73422.0128639906. The cubic root of 5390791973 is about 1753.4128743145.

The spelling of 5390791973 in words is "five billion, three hundred ninety million, seven hundred ninety-one thousand, nine hundred seventy-three".

Divisors: 1 7 770113139 5390791973