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421233541425522 = 232717317583836567
BaseRepresentation
bin101111111000111000001001…
…1100110101010100101110010
32001020110112101202112200200100
41133301300103212222211302
5420202442243101104042
64051520003434533230
7154504055561042010
oct13761602346524562
92036415352480610
10421233541425522
11112244161665201
123b2b1a70897216
13151071ca0c3527
147603b528db8b0
1533a73b766a24c
hex17f1c139aa972

421233541425522 has 192 divisors, whose sum is σ = 1140188483026944. Its totient is φ = 109604334159360.

The previous prime is 421233541425497. The next prime is 421233541425547. The reversal of 421233541425522 is 225524145332124.

421233541425522 is a `hidden beast` number, since 4 + 2 + 1 + 2 + 3 + 3 + 54 + 1 + 42 + 552 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (421233541425497) and next prime (421233541425547).

It is a super-4 number, since 4×4212335414255224 (a number of 60 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 503108083 + ... + 503944649.

It is an arithmetic number, because the mean of its divisors is an integer number (5938481682432).

Almost surely, 2421233541425522 is an apocalyptic number.

421233541425522 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 421233541425522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (570094241513472).

421233541425522 is an abundant number, since it is smaller than the sum of its proper divisors (718954941601422).

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

421233541425522 is a wasteful number, since it uses less digits than its factorization.

421233541425522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844213 (or 844210 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 45.

Adding to 421233541425522 its reverse (225524145332124), we get a palindrome (646757686757646).

The spelling of 421233541425522 in words is "four hundred twenty-one trillion, two hundred thirty-three billion, five hundred forty-one million, four hundred twenty-five thousand, five hundred twenty-two".