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1004230501220 = 22550211525061
BaseRepresentation
bin11101001110100001100…
…11010110001101100100
310120000002112212011011102
432213100303112031210
5112423131002014340
62045200452455232
7132360524263562
oct16472063261544
93500075764142
101004230501220
11357989a350a1
1214276291a518
13739108936bb
143686823ca32
151b1c7d6d215
hexe9d0cd6364

1004230501220 has 12 divisors (see below), whose sum is σ = 2108884052604. Its totient is φ = 401692200480.

The previous prime is 1004230501213. The next prime is 1004230501273. The reversal of 1004230501220 is 221050324001.

1004230501220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 281332646464 + 722897854756 = 530408^2 + 850234^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 50211525061 = 1004230501220 / (1 + 0 + 0 + 4 + 2 + 3 + 0 + 5 + 0 + 1 + 2 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 1004230501192 and 1004230501201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25105762511 + ... + 25105762550.

It is an arithmetic number, because the mean of its divisors is an integer number (175740337717).

Almost surely, 21004230501220 is an apocalyptic number.

1004230501220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004230501220 is an abundant number, since it is smaller than the sum of its proper divisors (1104653551384).

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

1004230501220 is a wasteful number, since it uses less digits than its factorization.

1004230501220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50211525070 (or 50211525068 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 1004230501220 its reverse (221050324001), we get a palindrome (1225280825221).

The spelling of 1004230501220 in words is "one trillion, four billion, two hundred thirty million, five hundred one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 50211525061 100423050122 200846100244 251057625305 502115250610 1004230501220