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220140061 = 1923503753
BaseRepresentation
bin11010001111100…
…01001000011101
3120100020021101121
431013301020131
5422323440221
633502210541
75312105521
oct1507611035
9510207347
10220140061
11103299539
1261883a51
13367b93bb
1421345d81
15144d6a41
hexd1f121d

220140061 has 8 divisors (see below), whose sum is σ = 241801920. Its totient is φ = 199485792.

The previous prime is 220140043. The next prime is 220140077. The reversal of 220140061 is 160041022.

220140061 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.

It is a cyclic number.

It is not a de Polignac number, because 220140061 - 211 = 220138013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220140001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251440 + ... + 252313.

It is an arithmetic number, because the mean of its divisors is an integer number (30225240).

Almost surely, 2220140061 is an apocalyptic number.

It is an amenable number.

220140061 is a deficient number, since it is larger than the sum of its proper divisors (21661859).

220140061 is a wasteful number, since it uses less digits than its factorization.

220140061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503795.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 220140061 is about 14837.1176783094. The cubic root of 220140061 is about 603.8091558587.

Adding to 220140061 its reverse (160041022), we get a palindrome (380181083).

The spelling of 220140061 in words is "two hundred twenty million, one hundred forty thousand, sixty-one".

Divisors: 1 19 23 437 503753 9571307 11586319 220140061