Search a number
-
+
258190571520 = 2113105761
BaseRepresentation
bin1111000001110101011…
…0110111100000000000
3220200102202010000000000
43300131112313200000
513212233241242040
6314340000000000
724440126435010
oct3603526674000
9820382100000
10258190571520
119a552934922
1242057600000
131b468c3790b
14c6d4525c40
156ab1e0a130
hex3c1d5b7800

258190571520 has 1056 divisors, whose sum is σ = 1079414350560. Its totient is φ = 58047528960.

The previous prime is 258190571497. The next prime is 258190571537. The reversal of 258190571520 is 25175091852.

258190571520 is a `hidden beast` number, since 2 + 58 + 1 + 9 + 0 + 5 + 71 + 520 = 666.

It is a super-2 number, since 2×2581905715202 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 87 ways as a sum of consecutive naturals, for example, 4232632290 + ... + 4232632350.

Almost surely, 2258190571520 is an apocalyptic number.

258190571520 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 258190571520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539707175280).

258190571520 is an abundant number, since it is smaller than the sum of its proper divisors (821223779040).

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

258190571520 is an frugal number, since it uses more digits than its factorization.

258190571520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 45.

The spelling of 258190571520 in words is "two hundred fifty-eight billion, one hundred ninety million, five hundred seventy-one thousand, five hundred twenty".