Search a number
-
+
190913741778552 = 2331315119728197297
BaseRepresentation
bin101011011010001010010001…
…110000101110111001111000
3221000222011201220202120022120
4223122022101300232321320
5200010412320343403202
61514012321233521240
755133030331623112
oct5332122160567170
9830864656676276
10190913741778552
1155916077139801
12194b4441a13220
13826b11c86aa90
1435203bad783b2
151711187ca10bc
hexada291c2ee78

190913741778552 has 256 divisors, whose sum is σ = 520284672230400. Its totient is φ = 58028905267200.

The previous prime is 190913741778527. The next prime is 190913741778623. The reversal of 190913741778552 is 255877147319091.

190913741778552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26163315768 + ... + 26163323064.

It is an arithmetic number, because the mean of its divisors is an integer number (2032362000900).

Almost surely, 2190913741778552 is an apocalyptic number.

190913741778552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190913741778552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260142336115200).

190913741778552 is an abundant number, since it is smaller than the sum of its proper divisors (329370930451848).

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

190913741778552 is a wasteful number, since it uses less digits than its factorization.

190913741778552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10486 (or 10482 counting only the distinct ones).

The product of its (nonzero) digits is 133358400, while the sum is 69.

The spelling of 190913741778552 in words is "one hundred ninety trillion, nine hundred thirteen billion, seven hundred forty-one million, seven hundred seventy-eight thousand, five hundred fifty-two".