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550221524130 = 23518340717471
BaseRepresentation
bin10000000000110111100…
…00100010110010100010
31221121012212212110211210
420000123300202302202
533003323202233010
61100433540450550
754516000534135
oct10003360426242
91847185773753
10550221524130
111a2390784943
128a7780a9a56
133cb68a6cb65
141c8b913a21c
15e4a4b84b20
hex801bc22ca2

550221524130 has 16 divisors (see below), whose sum is σ = 1320531657984. Its totient is φ = 146725739760.

The previous prime is 550221524053. The next prime is 550221524131. The reversal of 550221524130 is 31425122055.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 18340717471 = 550221524130 / (5 + 5 + 0 + 2 + 2 + 1 + 5 + 2 + 4 + 1 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (550221524131) 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, 9170358706 + ... + 9170358765.

It is an arithmetic number, because the mean of its divisors is an integer number (82533228624).

Almost surely, 2550221524130 is an apocalyptic number.

550221524130 is an abundant number, since it is smaller than the sum of its proper divisors (770310133854).

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

550221524130 is a wasteful number, since it uses less digits than its factorization.

550221524130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18340717481.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 550221524130 its reverse (31425122055), we get a palindrome (581646646185).

The spelling of 550221524130 in words is "five hundred fifty billion, two hundred twenty-one million, five hundred twenty-four thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 18340717471 36681434942 55022152413 91703587355 110044304826 183407174710 275110762065 550221524130