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61020027 = 3371139229
BaseRepresentation
bin1110100011000…
…1011101111011
311020211010202000
43220301131323
5111110120102
610015512043
71340442645
oct350613573
9136733660
1061020027
1131498282
1218528623
13c846333
148165895
15555501c
hex3a3177b

61020027 has 32 divisors (see below), whose sum is σ = 92736000. Its totient is φ = 39644640.

The previous prime is 61020019. The next prime is 61020061. The reversal of 61020027 is 72002016.

It is a happy number.

It is not a de Polignac number, because 61020027 - 23 = 61020019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61019991 and 61020009.

It is not an unprimeable number, because it can be changed into a prime (61020017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 266349 + ... + 266577.

It is an arithmetic number, because the mean of its divisors is an integer number (2898000).

Almost surely, 261020027 is an apocalyptic number.

61020027 is a deficient number, since it is larger than the sum of its proper divisors (31715973).

61020027 is a wasteful number, since it uses less digits than its factorization.

61020027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 61020027 is about 7811.5316679893. The cubic root of 61020027 is about 393.6927935031.

The spelling of 61020027 in words is "sixty-one million, twenty thousand, twenty-seven".

Divisors: 1 3 9 27 71 139 213 229 417 639 687 1251 1917 2061 3753 6183 9869 16259 29607 31831 48777 88821 95493 146331 266463 286479 438993 859437 2260001 6780003 20340009 61020027