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130434624 = 26358387
BaseRepresentation
bin1111100011001…
…00011001000000
3100002102202200000
413301210121000
5231342401444
620535400000
73142450605
oct761443100
9302382600
10130434624
1167699511
1237823000
132103b568
14134746ac
15b6b7469
hex7c64640

130434624 has 84 divisors (see below), whose sum is σ = 387760464. Its totient is φ = 43473024.

The previous prime is 130434613. The next prime is 130434637. The reversal of 130434624 is 426434031.

130434624 is a `hidden beast` number, since 1 + 3 + 0 + 4 + 34 + 624 = 666.

It is a super-2 number, since 2×1304346242 = 34026382276042752, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11359 + ... + 19745.

It is an arithmetic number, because the mean of its divisors is an integer number (4616196).

Almost surely, 2130434624 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 130434624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193880232).

130434624 is an abundant number, since it is smaller than the sum of its proper divisors (257325840).

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

130434624 is an frugal number, since it uses more digits than its factorization.

130434624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8414 (or 8392 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 130434624 is about 11420.7978705518. The cubic root of 130434624 is about 507.1436167491.

Adding to 130434624 its reverse (426434031), we get a palindrome (556868655).

The spelling of 130434624 in words is "one hundred thirty million, four hundred thirty-four thousand, six hundred twenty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 144 162 192 216 243 288 324 432 486 576 648 864 972 1296 1728 1944 2592 3888 5184 7776 8387 15552 16774 25161 33548 50322 67096 75483 100644 134192 150966 201288 226449 268384 301932 402576 452898 536768 603864 679347 805152 905796 1207728 1358694 1610304 1811592 2038041 2415456 2717388 3623184 4076082 4830912 5434776 7246368 8152164 10869552 14492736 16304328 21739104 32608656 43478208 65217312 130434624