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130500550 = 25219137369
BaseRepresentation
bin1111100011101…
…00011111000110
3100002120010002201
413301310133012
5231402004200
620541025114
73143144035
oct761643706
9302503081
10130500550
1167733aa4
123785519a
132106257b
141349071c
15b6cbc6a
hex7c747c6

130500550 has 24 divisors (see below), whose sum is σ = 255508200. Its totient is φ = 49452480.

The previous prime is 130500521. The next prime is 130500563. The reversal of 130500550 is 55005031.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67735 + ... + 69634.

It is an arithmetic number, because the mean of its divisors is an integer number (10646175).

Almost surely, 2130500550 is an apocalyptic number.

130500550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130500550 is a deficient number, since it is larger than the sum of its proper divisors (125007650).

130500550 is a wasteful number, since it uses less digits than its factorization.

130500550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137400 (or 137395 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 19.

The square root of 130500550 is about 11423.6837316165. The cubic root of 130500550 is about 507.2290447788.

Adding to 130500550 its reverse (55005031), we get a palindrome (185505581).

The spelling of 130500550 in words is "one hundred thirty million, five hundred thousand, five hundred fifty".

Divisors: 1 2 5 10 19 25 38 50 95 190 475 950 137369 274738 686845 1373690 2610011 3434225 5220022 6868450 13050055 26100110 65250275 130500550