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57245123 = 1312734673
BaseRepresentation
bin1101101001011…
…1110111000011
310222201100112202
43122113313003
5104123320443
65402543415
71263401255
oct332276703
9128640482
1057245123
112a34a121
1217207b6b
13bb24070
147861cd5
15505b7b8
hex3697dc3

57245123 has 8 divisors (see below), whose sum is σ = 62135808. Its totient is φ = 52424064.

The previous prime is 57245117. The next prime is 57245131. The reversal of 57245123 is 32154275.

It is a happy number.

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 57245123 - 222 = 53050819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57245113) 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, 15686 + ... + 18987.

It is an arithmetic number, because the mean of its divisors is an integer number (7766976).

Almost surely, 257245123 is an apocalyptic number.

57245123 is a deficient number, since it is larger than the sum of its proper divisors (4890685).

57245123 is a wasteful number, since it uses less digits than its factorization.

57245123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34813.

The product of its digits is 8400, while the sum is 29.

The square root of 57245123 is about 7566.0506871154. The cubic root of 57245123 is about 385.4009944690.

Adding to 57245123 its reverse (32154275), we get a palindrome (89399398).

The spelling of 57245123 in words is "fifty-seven million, two hundred forty-five thousand, one hundred twenty-three".

Divisors: 1 13 127 1651 34673 450749 4403471 57245123