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57072254 = 254152747
BaseRepresentation
bin1101100110110…
…1101001111110
310222101120102012
43121231221332
5104102303004
65355131222
71262051261
oct331555176
9128346365
1057072254
112a241258
1217143b12
13ba93485
147818cd8
15502546e
hex366da7e

57072254 has 8 divisors (see below), whose sum is σ = 85768248. Its totient is φ = 28482840.

The previous prime is 57072227. The next prime is 57072259. The reversal of 57072254 is 45227075.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 57072254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57072259) 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, 25292 + ... + 27455.

It is an arithmetic number, because the mean of its divisors is an integer number (10721031).

Almost surely, 257072254 is an apocalyptic number.

57072254 is a deficient number, since it is larger than the sum of its proper divisors (28695994).

57072254 is a wasteful number, since it uses less digits than its factorization.

57072254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53290.

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 57072254 is about 7554.6180578504. The cubic root of 57072254 is about 385.0126582671.

The spelling of 57072254 in words is "fifty-seven million, seventy-two thousand, two hundred fifty-four".

Divisors: 1 2 541 1082 52747 105494 28536127 57072254