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61201127 = 134707779
BaseRepresentation
bin1110100101110…
…1101011100111
311021011100011102
43221131223213
5111131414002
610023430315
71342125641
oct351355347
9137140142
1061201127
1131601349
12185b539b
13c8aa8b0
1481b1891
15558da02
hex3a5dae7

61201127 has 4 divisors (see below), whose sum is σ = 65908920. Its totient is φ = 56493336.

The previous prime is 61201103. The next prime is 61201141. The reversal of 61201127 is 72110216.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61201127 - 28 = 61200871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61201099 and 61201108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61201177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2353877 + ... + 2353902.

It is an arithmetic number, because the mean of its divisors is an integer number (16477230).

Almost surely, 261201127 is an apocalyptic number.

61201127 is a deficient number, since it is larger than the sum of its proper divisors (4707793).

61201127 is a wasteful number, since it uses less digits than its factorization.

61201127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4707792.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 61201127 is about 7823.1149167068. The cubic root of 61201127 is about 394.0818862328.

The spelling of 61201127 in words is "sixty-one million, two hundred one thousand, one hundred twenty-seven".

Divisors: 1 13 4707779 61201127