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61048071 = 3272172479
BaseRepresentation
bin1110100011100…
…0010100000111
311020212120012200
43220320110013
5111112014241
610020245543
71340620500
oct350702407
9136776180
1061048071
1131507357
12185408b3
13c856026
148171ba7
15555d4b6
hex3a38507

61048071 has 54 divisors (see below), whose sum is σ = 109193760. Its totient is φ = 32764032.

The previous prime is 61048069. The next prime is 61048081. The reversal of 61048071 is 17084016.

It is a happy number.

61048071 is a `hidden beast` number, since 610 + 48 + 0 + 7 + 1 = 666.

It is not a de Polignac number, because 61048071 - 21 = 61048069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61048061) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 127210 + ... + 127688.

Almost surely, 261048071 is an apocalyptic number.

61048071 is a deficient number, since it is larger than the sum of its proper divisors (48145689).

61048071 is a wasteful number, since it uses less digits than its factorization.

61048071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 61048071 is about 7813.3265002814. The cubic root of 61048071 is about 393.7530962719.

The spelling of 61048071 in words is "sixty-one million, forty-eight thousand, seventy-one".

Divisors: 1 3 7 9 17 21 49 51 63 119 147 153 289 357 441 479 833 867 1071 1437 2023 2499 2601 3353 4311 6069 7497 8143 10059 14161 18207 23471 24429 30177 42483 57001 70413 73287 127449 138431 171003 211239 399007 415293 513009 969017 1197021 1245879 2907051 3591063 6783119 8721153 20349357 61048071