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61062269 = 199730577
BaseRepresentation
bin1110100011101…
…1110001111101
311020220021200112
43220323301331
5111112443034
610020435405
71341010052
oct350736175
9136807615
1061062269
1131516a94
1218548b65
13c85c628
148177029
1555627ce
hex3a3bc7d

61062269 has 4 divisors (see below), whose sum is σ = 61094844. Its totient is φ = 61029696.

The previous prime is 61062251. The next prime is 61062271. The reversal of 61062269 is 96226016.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9078169 + 51984100 = 3013^2 + 7210^2 .

It is a cyclic number.

It is not a de Polignac number, because 61062269 - 28 = 61062013 is a prime.

It is a super-3 number, since 3×610622693 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61062229) 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, 13292 + ... + 17285.

It is an arithmetic number, because the mean of its divisors is an integer number (15273711).

Almost surely, 261062269 is an apocalyptic number.

It is an amenable number.

61062269 is a deficient number, since it is larger than the sum of its proper divisors (32575).

61062269 is a wasteful number, since it uses less digits than its factorization.

61062269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32574.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 61062269 is about 7814.2350233404. The cubic root of 61062269 is about 393.7836190661.

The spelling of 61062269 in words is "sixty-one million, sixty-two thousand, two hundred sixty-nine".

Divisors: 1 1997 30577 61062269