Search a number
-
+
53078268672 = 283211131961139
BaseRepresentation
bin110001011011101101…
…100001101100000000
312002000010010102101200
4301123231201230000
51332201014044142
640214523301200
73556220560662
oct613355415400
9162003112350
1053078268672
1120568331950
12a35397a800
13500b729590
1427d74ac532
1515a9c4964c
hexc5bb61b00

53078268672 has 864 divisors, whose sum is σ = 193741766400. Its totient is φ = 13735526400.

The previous prime is 53078268667. The next prime is 53078268731. The reversal of 53078268672 is 27686287035.

53078268672 is a `hidden beast` number, since 5 + 307 + 8 + 268 + 6 + 72 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 381857979 + ... + 381858117.

Almost surely, 253078268672 is an apocalyptic number.

53078268672 is a gapful number since it is divisible by the number (52) 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 53078268672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96870883200).

53078268672 is an abundant number, since it is smaller than the sum of its proper divisors (140663497728).

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

53078268672 is a wasteful number, since it uses less digits than its factorization.

53078268672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 53078268672 in words is "fifty-three billion, seventy-eight million, two hundred sixty-eight thousand, six hundred seventy-two".