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220212132 = 22372621573
BaseRepresentation
bin11010010000000…
…10101110100100
3120100100221020220
431020002232210
5422333242012
633503524340
75312525610
oct1510025644
9510327226
10220212132
111033386a8
12618b96b0
133681314a
1421364340
15144ed08c
hexd202ba4

220212132 has 24 divisors (see below), whose sum is σ = 587232576. Its totient is φ = 62917728.

The previous prime is 220212121. The next prime is 220212151. The reversal of 220212132 is 231212022.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1310703 + ... + 1310870.

It is an arithmetic number, because the mean of its divisors is an integer number (24468024).

Almost surely, 2220212132 is an apocalyptic number.

It is an amenable number.

220212132 is an abundant number, since it is smaller than the sum of its proper divisors (367020444).

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

220212132 is a wasteful number, since it uses less digits than its factorization.

220212132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621587 (or 2621585 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 220212132 is about 14839.5462194772. The cubic root of 220212132 is about 603.8750417639.

Adding to 220212132 its reverse (231212022), we get a palindrome (451424154).

The spelling of 220212132 in words is "two hundred twenty million, two hundred twelve thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 2621573 5243146 7864719 10486292 15729438 18351011 31458876 36702022 55053033 73404044 110106066 220212132