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28164710952 = 233271914512027
BaseRepresentation
bin11010001110101111…
…110110001000101000
32200200211212120002200
4122032233312020220
5430140131222302
620534431300200
72014643043630
oct321657661050
980624776080
1028164710952
1110a43277224
12556037a660
13286b09a851
1415127c76c0
15aec94e81c
hex68ebf6228

28164710952 has 192 divisors, whose sum is σ = 91873267200. Its totient is φ = 7614518400.

The previous prime is 28164710947. The next prime is 28164710957. The reversal of 28164710952 is 25901746182.

It is an interprime number because it is at equal distance from previous prime (28164710947) and next prime (28164710957).

It is a junction number, because it is equal to n+sod(n) for n = 28164710898 and 28164710907.

It is not an unprimeable number, because it can be changed into a prime (28164710957) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13893763 + ... + 13895789.

It is an arithmetic number, because the mean of its divisors is an integer number (478506600).

Almost surely, 228164710952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28164710952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45936633600).

28164710952 is an abundant number, since it is smaller than the sum of its proper divisors (63708556248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28164710952 is a wasteful number, since it uses less digits than its factorization.

28164710952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3516 (or 3509 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 28164710952 in words is "twenty-eight billion, one hundred sixty-four million, seven hundred ten thousand, nine hundred fifty-two".