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28423085743 = 138392605949
BaseRepresentation
bin11010011110001001…
…011101111010101111
32201100212001100200101
4122132021131322233
5431202302220433
621020221211531
72024231146123
oct323611357257
981325040611
1028423085743
1111066100008
125612a00ba7
1328ac783140
141538c43583
15b1548a07d
hex69e25deaf

28423085743 has 8 divisors (see below), whose sum is σ = 30645972000. Its totient is φ = 26205413088.

The previous prime is 28423085693. The next prime is 28423085749. The reversal of 28423085743 is 34758032482.

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 28423085743 - 225 = 28389531311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28423085693 and 28423085702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28423085749) 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, 1292068 + ... + 1313881.

It is an arithmetic number, because the mean of its divisors is an integer number (3830746500).

Almost surely, 228423085743 is an apocalyptic number.

28423085743 is a deficient number, since it is larger than the sum of its proper divisors (2222886257).

28423085743 is a wasteful number, since it uses less digits than its factorization.

28423085743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606801.

The product of its (nonzero) digits is 1290240, while the sum is 46.

The spelling of 28423085743 in words is "twenty-eight billion, four hundred twenty-three million, eighty-five thousand, seven hundred forty-three".

Divisors: 1 13 839 10907 2605949 33877337 2186391211 28423085743