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612052261 = 3778721019
BaseRepresentation
bin100100011110110…
…010110100100101
31120122200110212021
4210132302310211
52223141133021
6140422223141
721111233632
oct4436626445
91518613767
10612052261
1129453aa17
12150b84ab1
1399a58602
145b403189
1538aedc41
hex247b2d25

612052261 has 8 divisors (see below), whose sum is σ = 629422880. Its totient is φ = 594725328.

The previous prime is 612052219. The next prime is 612052271. The reversal of 612052261 is 162250216.

612052261 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 612052261 - 29 = 612051749 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 (612052271) 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, 18610 + ... + 39628.

It is an arithmetic number, because the mean of its divisors is an integer number (78677860).

Almost surely, 2612052261 is an apocalyptic number.

It is an amenable number.

612052261 is a deficient number, since it is larger than the sum of its proper divisors (17370619).

612052261 is a wasteful number, since it uses less digits than its factorization.

612052261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21843.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 612052261 is about 24739.6899940157. The cubic root of 612052261 is about 849.0426411584.

The spelling of 612052261 in words is "six hundred twelve million, fifty-two thousand, two hundred sixty-one".

Divisors: 1 37 787 21019 29119 777703 16541953 612052261