Search a number
-
+
130406464 = 26107137139
BaseRepresentation
bin1111100010111…
…01100001000000
3100002101100001001
413301131201000
5231341001324
620535021344
73142302526
oct761354100
9302340031
10130406464
116767a341
123780a854
132102b7b6
1413468316
15b6ade44
hex7c5d840

130406464 has 56 divisors (see below), whose sum is σ = 264993120. Its totient is φ = 63661056.

The previous prime is 130406431. The next prime is 130406467. The reversal of 130406464 is 464604031.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (130406467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 938107 + ... + 938245.

It is an arithmetic number, because the mean of its divisors is an integer number (4732020).

Almost surely, 2130406464 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 130406464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132496560).

130406464 is an abundant number, since it is smaller than the sum of its proper divisors (134586656).

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

130406464 is a wasteful number, since it uses less digits than its factorization.

130406464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 385 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 130406464 is about 11419.5649654442. The cubic root of 130406464 is about 507.1071177694.

The spelling of 130406464 in words is "one hundred thirty million, four hundred six thousand, four hundred sixty-four".

Divisors: 1 2 4 8 16 32 64 107 137 139 214 274 278 428 548 556 856 1096 1112 1712 2192 2224 3424 4384 4448 6848 8768 8896 14659 14873 19043 29318 29746 38086 58636 59492 76172 117272 118984 152344 234544 237968 304688 469088 475936 609376 938176 951872 1218752 2037601 4075202 8150404 16300808 32601616 65203232 130406464