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54983157 = 318327719
BaseRepresentation
bin1101000110111…
…1100111110101
310211110102201020
43101233213311
5103033430112
65242251353
71235230515
oct321574765
9124412636
1054983157
1129044729
12164b6b59
13b511618
147433845
154c6148c
hex346f9f5

54983157 has 4 divisors (see below), whose sum is σ = 73310880. Its totient is φ = 36655436.

The previous prime is 54983069. The next prime is 54983161. The reversal of 54983157 is 75138945.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54983157 - 27 = 54983029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54983167) 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, 9163857 + ... + 9163862.

It is an arithmetic number, because the mean of its divisors is an integer number (18327720).

Almost surely, 254983157 is an apocalyptic number.

It is an amenable number.

54983157 is a deficient number, since it is larger than the sum of its proper divisors (18327723).

54983157 is a wasteful number, since it uses less digits than its factorization.

54983157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18327722.

The product of its digits is 151200, while the sum is 42.

The square root of 54983157 is about 7415.0628453170. The cubic root of 54983157 is about 380.2564220350.

The spelling of 54983157 in words is "fifty-four million, nine hundred eighty-three thousand, one hundred fifty-seven".

Divisors: 1 3 18327719 54983157