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5191280 = 24564891
BaseRepresentation
bin10011110011011001110000
3100202202002122
4103303121300
52312110110
6303133412
762060633
oct23633160
910682078
105191280
112a26316
1218a4268
1310c9b83
14991c1a
156c8255
hex4f3670

5191280 has 20 divisors (see below), whose sum is σ = 12069912. Its totient is φ = 2076480.

The previous prime is 5191279. The next prime is 5191289. The reversal of 5191280 is 821915.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5191289) 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, 32366 + ... + 32525.

Almost surely, 25191280 is an apocalyptic number.

It is an amenable number.

5191280 is an abundant number, since it is smaller than the sum of its proper divisors (6878632).

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

5191280 is a wasteful number, since it uses less digits than its factorization.

5191280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64904 (or 64898 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 5191280 is about 2278.4380614798. The cubic root of 5191280 is about 173.1509257963.

The spelling of 5191280 in words is "five million, one hundred ninety-one thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 64891 129782 259564 324455 519128 648910 1038256 1297820 2595640 5191280