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23445054433 = 171379120849
BaseRepresentation
bin10101110101011011…
…110010001111100001
32020111221000011111101
4111311123302033201
5341003413220213
614434232514401
71456663450243
oct256533621741
966457004441
1023445054433
119a41138449
12466384ba01
132298346a98
1411c5a60093
15923422bdd
hex5756f23e1

23445054433 has 4 divisors (see below), whose sum is σ = 24824175300. Its totient is φ = 22065933568.

The previous prime is 23445054421. The next prime is 23445054461. The reversal of 23445054433 is 33445054432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11357591184 + 12087463249 = 106572^2 + 109943^2 .

It is a cyclic number.

It is not a de Polignac number, because 23445054433 - 29 = 23445053921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23445054392 and 23445054401.

It is not an unprimeable number, because it can be changed into a prime (23445054463) 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, 689560408 + ... + 689560441.

It is an arithmetic number, because the mean of its divisors is an integer number (6206043825).

Almost surely, 223445054433 is an apocalyptic number.

It is an amenable number.

23445054433 is a deficient number, since it is larger than the sum of its proper divisors (1379120867).

23445054433 is a wasteful number, since it uses less digits than its factorization.

23445054433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379120866.

The product of its (nonzero) digits is 345600, while the sum is 37.

Subtracting 23445054433 from its reverse (33445054432), we obtain a palindrome (9999999999).

The spelling of 23445054433 in words is "twenty-three billion, four hundred forty-five million, fifty-four thousand, four hundred thirty-three".

Divisors: 1 17 1379120849 23445054433