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28960892041 = 1701792
BaseRepresentation
bin11010111110001101…
…000010010010001001
32202202100000202020011
4122332031002102021
5433302442021131
621145432231521
72043451343404
oct327615022211
982670022204
1028960892041
1111311739924
125742b3b5a1
132967014413
14158a43ad3b
15b477c00b1
hex6be342489

28960892041 has 3 divisors (see below), whose sum is σ = 28961062221. Its totient is φ = 28960721862.

The previous prime is 28960892029. The next prime is 28960892053. The reversal of 28960892041 is 14029806982.

The square root of 28960892041 is 170179.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14029806982 = 27014903491.

It is an interprime number because it is at equal distance from previous prime (28960892029) and next prime (28960892053).

It is not a de Polignac number, because 28960892041 - 231 = 26813408393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28960892141) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 85090 + ... + 255268.

It is an arithmetic number, because the mean of its divisors is an integer number (9653687407).

Almost surely, 228960892041 is an apocalyptic number.

28960892041 is the 170179-th square number.

28960892041 is the 85090-th centered octagonal number.

It is an amenable number.

28960892041 is a deficient number, since it is larger than the sum of its proper divisors (170180).

28960892041 is an frugal number, since it uses more digits than its factorization.

28960892041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340358 (or 170179 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 49.

Multiplying 28960892041 by its sum of digits (49), we get a square (1419083710009 = 11912532).

The spelling of 28960892041 in words is "twenty-eight billion, nine hundred sixty million, eight hundred ninety-two thousand, forty-one".

Divisors: 1 170179 28960892041