Search a number
-
+
13052157078 = 2329101742697
BaseRepresentation
bin11000010011111100…
…00001110010010110
31020200121221021112010
430021332001302112
5203212323011303
65555053005050
7641305335042
oct141176016226
936617837463
1013052157078
115598669884
122643183786
131300133b8c
148bb665022
15515d05c03
hex309f81c96

13052157078 has 32 divisors (see below), whose sum is σ = 27271870560. Its totient is φ = 4159097600.

The previous prime is 13052157077. The next prime is 13052157113. The reversal of 13052157078 is 87075125031.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13052157077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353775 + ... + 388922.

It is an arithmetic number, because the mean of its divisors is an integer number (852245955).

Almost surely, 213052157078 is an apocalyptic number.

13052157078 is an abundant number, since it is smaller than the sum of its proper divisors (14219713482).

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

13052157078 is a wasteful number, since it uses less digits than its factorization.

13052157078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742832.

The product of its (nonzero) digits is 58800, while the sum is 39.

The spelling of 13052157078 in words is "thirteen billion, fifty-two million, one hundred fifty-seven thousand, seventy-eight".

Divisors: 1 2 3 6 29 58 87 101 174 202 303 606 2929 5858 8787 17574 742697 1485394 2228091 4456182 21538213 43076426 64614639 75012397 129229278 150024794 225037191 450074382 2175359513 4350719026 6526078539 13052157078