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130543712 = 25132101239
BaseRepresentation
bin1111100011111…
…11000001100000
3100002122022022022
413301333001200
5231404344322
620542001012
73143413625
oct761770140
9302568268
10130543712
1167763472
1237876168
1321079100
14134a234c
15b6d9942
hex7c7f060

130543712 has 72 divisors (see below), whose sum is σ = 282229920. Its totient is φ = 59404800.

The previous prime is 130543711. The next prime is 130543747. The reversal of 130543712 is 217345031.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130543711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 546089 + ... + 546327.

It is an arithmetic number, because the mean of its divisors is an integer number (3919860).

Almost surely, 2130543712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130543712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141114960).

130543712 is an abundant number, since it is smaller than the sum of its proper divisors (151686208).

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

130543712 is a wasteful number, since it uses less digits than its factorization.

130543712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 130543712 is about 11425.5727208749. The cubic root of 130543712 is about 507.2849592477.

Adding to 130543712 its reverse (217345031), we get a palindrome (347888743).

The spelling of 130543712 in words is "one hundred thirty million, five hundred forty-three thousand, seven hundred twelve".

Divisors: 1 2 4 8 13 16 26 32 52 101 104 169 202 208 239 338 404 416 478 676 808 956 1313 1352 1616 1912 2626 2704 3107 3232 3824 5252 5408 6214 7648 10504 12428 17069 21008 24139 24856 34138 40391 42016 48278 49712 68276 80782 96556 99424 136552 161564 193112 273104 313807 323128 386224 546208 627614 646256 772448 1255228 1292512 2510456 4079491 5020912 8158982 10041824 16317964 32635928 65271856 130543712