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1220410021325 = 521123199969599
BaseRepresentation
bin10001110000100110000…
…110110001010111001101
311022200002110202121202012
4101300212012301113031
5124443344431140300
62332352034111005
7154112620010255
oct21604606612715
94280073677665
101220410021325
11430633706210
12178634a1b465
138b112c023c1
14430d5062965
1521b2b949435
hex11c261b15cd

1220410021325 has 48 divisors (see below), whose sum is σ = 1731317760000. Its totient is φ = 844713777600.

The previous prime is 1220410021301. The next prime is 1220410021361. The reversal of 1220410021325 is 5231200140221.

It is not a de Polignac number, because 1220410021325 - 214 = 1220410004941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 1220410021325.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 773876 + ... + 1743474.

It is an arithmetic number, because the mean of its divisors is an integer number (36069120000).

Almost surely, 21220410021325 is an apocalyptic number.

It is an amenable number.

1220410021325 is a deficient number, since it is larger than the sum of its proper divisors (510907738675).

1220410021325 is a wasteful number, since it uses less digits than its factorization.

1220410021325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969842 (or 969837 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 1220410021325 its reverse (5231200140221), we get a palindrome (6451610161546).

The spelling of 1220410021325 in words is "one trillion, two hundred twenty billion, four hundred ten million, twenty-one thousand, three hundred twenty-five".

Divisors: 1 5 11 23 25 55 115 199 253 275 575 995 1265 2189 4577 4975 6325 10945 22885 50347 54725 114425 251735 969599 1258675 4847995 10665589 22300777 24239975 53327945 111503885 192950201 245308547 266639725 557519425 964751005 1226542735 2122452211 4437854623 4823755025 6132713675 10612261055 22189273115 48816400853 53061305275 110946365575 244082004265 1220410021325