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5128380079 = 19237438929
BaseRepresentation
bin1001100011010110…
…01101111010101111
3111020101221200220221
410301223031322233
541000331130304
62204514552211
7241041340264
oct46153157257
914211850827
105128380079
1121a1922949
12bb1598667
1363962ac34
1436915d26b
15200365054
hex131acdeaf

5128380079 has 24 divisors (see below), whose sum is σ = 5688695760. Its totient is φ = 4616704512.

The previous prime is 5128380077. The next prime is 5128380083. The reversal of 5128380079 is 9700838215.

It is not a de Polignac number, because 5128380079 - 21 = 5128380077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5128380071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 569887 + ... + 578815.

It is an arithmetic number, because the mean of its divisors is an integer number (237028990).

Almost surely, 25128380079 is an apocalyptic number.

5128380079 is a deficient number, since it is larger than the sum of its proper divisors (560315681).

5128380079 is a wasteful number, since it uses less digits than its factorization.

5128380079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9047 (or 9028 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 5128380079 is about 71612.7089209730. The cubic root of 5128380079 is about 1724.4875693068.

The spelling of 5128380079 in words is "five billion, one hundred twenty-eight million, three hundred eighty thousand, seventy-nine".

Divisors: 1 19 37 43 361 703 817 1591 8929 13357 15523 30229 169651 330373 383947 574351 3223369 6277087 7294993 14206039 119264653 138604867 269914741 5128380079