Search a number
-
+
208103249176960 = 27523181668911677
BaseRepresentation
bin101111010100010011010000…
…001111100110100110000000
31000021211110212020120002112211
4233110103100033212212000
5204234030423242130320
62014333151325431504
761555651341001504
oct5724232017464600
91007743766502484
10208103249176960
1160343101a133a5
121b40b97910b594
138c1708a88bb97
143956372a70304
15190d39a60355a
hexbd44d03e6980

208103249176960 has 256 divisors, whose sum is σ = 522117980092800. Its totient is φ = 79163593850880.

The previous prime is 208103249176943. The next prime is 208103249176961. The reversal of 208103249176960 is 69671942301802.

It is a junction number, because it is equal to n+sod(n) for n = 208103249176895 and 208103249176904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208103249176961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17821630642 + ... + 17821642318.

Almost surely, 2208103249176960 is an apocalyptic number.

208103249176960 is a gapful number since it is divisible by the number (20) 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 208103249176960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261058990046400).

208103249176960 is an abundant number, since it is smaller than the sum of its proper divisors (314014730915840).

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

208103249176960 is a wasteful number, since it uses less digits than its factorization.

208103249176960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18589 (or 18577 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 58.

The spelling of 208103249176960 in words is "two hundred eight trillion, one hundred three billion, two hundred forty-nine million, one hundred seventy-six thousand, nine hundred sixty".