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61020222 = 2310170037
BaseRepresentation
bin1110100011000…
…1100000111110
311020211011000020
43220301200332
5111110121342
610015513010
71340443344
oct350614076
9136734006
1061020222
113149843a
1218528766
13c846453
148165994
1555550ec
hex3a3183e

61020222 has 8 divisors (see below), whose sum is σ = 122040456. Its totient is φ = 20340072.

The previous prime is 61020221. The next prime is 61020233. The reversal of 61020222 is 22202016.

61020222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

61020222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61020221) 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 3 ways as a sum of consecutive naturals, for example, 5085013 + ... + 5085024.

It is an arithmetic number, because the mean of its divisors is an integer number (15255057).

Almost surely, 261020222 is an apocalyptic number.

61020222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61020222 is a wasteful number, since it uses less digits than its factorization.

61020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10170042.

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

The square root of 61020222 is about 7811.5441495264. The cubic root of 61020222 is about 393.6932128737.

Adding to 61020222 its reverse (22202016), we get a palindrome (83222238).

The spelling of 61020222 in words is "sixty-one million, twenty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 10170037 20340074 30510111 61020222