Search a number
-
+
130261450 = 252111631453
BaseRepresentation
bin1111100001110…
…10000111001010
3100002002222010011
413300322013022
5231321331300
620531542134
73141126664
oct760720712
9302088104
10130261450
11675903a0
123775a94a
1320caa7a7
141342b534
15b680eba
hex7c3a1ca

130261450 has 48 divisors (see below), whose sum is σ = 266116896. Its totient is φ = 47044800.

The previous prime is 130261447. The next prime is 130261451. The reversal of 130261450 is 54162031.

It is a super-2 number, since 2×1302614502 = 33936090712205000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (130261451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88924 + ... + 90376.

It is an arithmetic number, because the mean of its divisors is an integer number (5544102).

Almost surely, 2130261450 is an apocalyptic number.

130261450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130261450 is an abundant number, since it is smaller than the sum of its proper divisors (135855446).

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

130261450 is a wasteful number, since it uses less digits than its factorization.

130261450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639 (or 1634 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 130261450 is about 11413.2138330971. The cubic root of 130261450 is about 506.9190777380.

The spelling of 130261450 in words is "one hundred thirty million, two hundred sixty-one thousand, four hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 163 275 326 550 815 1453 1630 1793 2906 3586 4075 7265 8150 8965 14530 15983 17930 31966 36325 44825 72650 79915 89650 159830 236839 399575 473678 799150 1184195 2368390 2605229 5210458 5920975 11841950 13026145 26052290 65130725 130261450