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2213022131442 = 23427494969309
BaseRepresentation
bin100000001101000010011…
…001011110010011110010
321211120012022120100120000
4200031002121132103302
5242224232131201232
64412352012330430
7315612515513613
oct40150231362362
97746168510500
102213022131442
117835a0333091
122b8a94773a16
131308c1703865
147917a21bc0a
153c8747c627c
hex2034265e4f2

2213022131442 has 40 divisors (see below), whose sum is σ = 4960613707500. Its totient is φ = 737405552736.

The previous prime is 2213022131413. The next prime is 2213022131447. The reversal of 2213022131442 is 2441312203122.

2213022131442 is a `hidden beast` number, since 2 + 2 + 1 + 3 + 0 + 2 + 213 + 1 + 442 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2209744683441 + 3277448001 = 1486521^2 + 57249^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2213022131447) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2039317 + ... + 2929992.

Almost surely, 22213022131442 is an apocalyptic number.

2213022131442 is an abundant number, since it is smaller than the sum of its proper divisors (2747591576058).

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

2213022131442 is a wasteful number, since it uses less digits than its factorization.

2213022131442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4972072 (or 4972063 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 2213022131442 its reverse (2441312203122), we get a palindrome (4654334334564).

The spelling of 2213022131442 in words is "two trillion, two hundred thirteen billion, twenty-two million, one hundred thirty-one thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 81 162 2749 5498 8247 16494 24741 49482 74223 148446 222669 445338 4969309 9938618 14907927 29815854 44723781 89447562 134171343 268342686 402514029 805028058 13660630441 27321260882 40981891323 81963782646 122945673969 245891347938 368837021907 737674043814 1106511065721 2213022131442