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123053588393 = 569216262897
BaseRepresentation
bin111001010011010010…
…0001011111110101001
3102202121211000222021212
41302212210023332221
54004003204312033
6132310253242505
711614245146321
oct1624644137651
9382554028255
10123053588393
11482065a729a
121ba22493435
13b7b0a123c8
145d54adc281
1533030d2748
hex1ca690bfa9

123053588393 has 4 divisors (see below), whose sum is σ = 123269851860. Its totient is φ = 122837324928.

The previous prime is 123053588389. The next prime is 123053588431. The reversal of 123053588393 is 393885350321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 393885350321 = 459498572229.

It can be written as a sum of positive squares in 2 ways, for example, as 46006818064 + 77046770329 = 214492^2 + 277573^2 .

It is a cyclic number.

It is not a de Polignac number, because 123053588393 - 22 = 123053588389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123053588303) 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, 108130880 + ... + 108132017.

It is an arithmetic number, because the mean of its divisors is an integer number (30817462965).

Almost surely, 2123053588393 is an apocalyptic number.

It is an amenable number.

123053588393 is a deficient number, since it is larger than the sum of its proper divisors (216263467).

123053588393 is an equidigital number, since it uses as much as digits as its factorization.

123053588393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216263466.

The product of its (nonzero) digits is 2332800, while the sum is 50.

The spelling of 123053588393 in words is "one hundred twenty-three billion, fifty-three million, five hundred eighty-eight thousand, three hundred ninety-three".

Divisors: 1 569 216262897 123053588393