Search a number
-
+
130400215 = 5117433191
BaseRepresentation
bin1111100010110…
…11111111010111
3100002101000110121
413301123333113
5231340301330
620534532411
73142245361
oct761337727
9302330417
10130400215
1167675680
1237807107
13210289ba
1413465d31
15b6ac17a
hex7c5bfd7

130400215 has 16 divisors (see below), whose sum is σ = 170989056. Its totient is φ = 94679200.

The previous prime is 130400203. The next prime is 130400261. The reversal of 130400215 is 512004031.

It is not a de Polignac number, because 130400215 - 219 = 129875927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39270 + ... + 42460.

It is an arithmetic number, because the mean of its divisors is an integer number (10686816).

Almost surely, 2130400215 is an apocalyptic number.

130400215 is a deficient number, since it is larger than the sum of its proper divisors (40588841).

130400215 is a wasteful number, since it uses less digits than its factorization.

130400215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3950.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 130400215 is about 11419.2913527942. The cubic root of 130400215 is about 507.0990175497.

Adding to 130400215 its reverse (512004031), we get a palindrome (642404246).

The spelling of 130400215 in words is "one hundred thirty million, four hundred thousand, two hundred fifteen".

Divisors: 1 5 11 55 743 3191 3715 8173 15955 35101 40865 175505 2370913 11854565 26080043 130400215