Search a number
-
+
538134078 = 23439721503
BaseRepresentation
bin100000000100110…
…100011000111110
31101111121001011210
4200010310120332
52100230242303
6125222025250
716223031006
oct4004643076
91344531153
10538134078
11256843109
12130278226
1387647541
1451681006
153239c203
hex2013463e

538134078 has 32 divisors (see below), whose sum is σ = 1112702976. Its totient is φ = 173392128.

The previous prime is 538133977. The next prime is 538134083. The reversal of 538134078 is 870431835.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14275 + ... + 35777.

It is an arithmetic number, because the mean of its divisors is an integer number (34771968).

Almost surely, 2538134078 is an apocalyptic number.

538134078 is an abundant number, since it is smaller than the sum of its proper divisors (574568898).

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

538134078 is a wasteful number, since it uses less digits than its factorization.

538134078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21648.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 538134078 is about 23197.7170859548. The cubic root of 538134078 is about 813.3862596945.

The spelling of 538134078 in words is "five hundred thirty-eight million, one hundred thirty-four thousand, seventy-eight".

Divisors: 1 2 3 6 43 86 97 129 194 258 291 582 4171 8342 12513 21503 25026 43006 64509 129018 924629 1849258 2085791 2773887 4171582 5547774 6257373 12514746 89689013 179378026 269067039 538134078