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57722061 = 379243553
BaseRepresentation
bin1101110000110…
…0010011001101
311000121120210010
43130030103031
5104234101221
65421103433
71300425615
oct334142315
9130546703
1057722061
112a645491
12173b7b79
13bc60187
147947a45
155102c76
hex370c4cd

57722061 has 8 divisors (see below), whose sum is σ = 77937280. Its totient is φ = 37994112.

The previous prime is 57722059. The next prime is 57722069. The reversal of 57722061 is 16022775.

57722061 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 not a de Polignac number, because 57722061 - 21 = 57722059 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 (57722069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121540 + ... + 122013.

It is an arithmetic number, because the mean of its divisors is an integer number (9742160).

Almost surely, 257722061 is an apocalyptic number.

It is an amenable number.

57722061 is a deficient number, since it is larger than the sum of its proper divisors (20215219).

57722061 is a wasteful number, since it uses less digits than its factorization.

57722061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243635.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 57722061 is about 7597.5036031581. The cubic root of 57722061 is about 386.4683590569.

The spelling of 57722061 in words is "fifty-seven million, seven hundred twenty-two thousand, sixty-one".

Divisors: 1 3 79 237 243553 730659 19240687 57722061