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2202120988 = 224143312269
BaseRepresentation
bin1000001101000001…
…1011001100011100
312200110200100002121
42003100123030130
514002220332423
61002303032324
7105366501544
oct20320331434
95613610077
102202120988
11a30049101
1251559b6a4
132912c4b92
1416c670324
15cd4da45d
hex8341b31c

2202120988 has 24 divisors (see below), whose sum is σ = 4039524720. Its totient is φ = 1049220480.

The previous prime is 2202120967. The next prime is 2202120989. The reversal of 2202120988 is 8890212022.

It is a happy number.

It is a super-2 number, since 2×22021209882 = 9698673691580192288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202120989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149083 + ... + 163186.

It is an arithmetic number, because the mean of its divisors is an integer number (168313530).

Almost surely, 22202120988 is an apocalyptic number.

It is an amenable number.

2202120988 is a deficient number, since it is larger than the sum of its proper divisors (1837403732).

2202120988 is a wasteful number, since it uses less digits than its factorization.

2202120988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312357 (or 312355 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 2202120988 is about 46926.7619594619. The cubic root of 2202120988 is about 1301.0092730388.

The spelling of 2202120988 in words is "two billion, two hundred two million, one hundred twenty thousand, nine hundred eighty-eight".

Divisors: 1 2 4 41 43 82 86 164 172 1763 3526 7052 312269 624538 1249076 12803029 13427567 25606058 26855134 51212116 53710268 550530247 1101060494 2202120988