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57013284 = 22361711097
BaseRepresentation
bin1101100101111…
…1010000100100
310222021120112010
43121133100210
5104043411114
65353554220
71261414326
oct331372044
9128246463
1057013284
112a200a19
1217115970
13ba72693
147801616
155012c59
hex365f424

57013284 has 48 divisors (see below), whose sum is σ = 137241216. Its totient is φ = 18412800.

The previous prime is 57013283. The next prime is 57013289. The reversal of 57013284 is 48231075.

57013284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a fibodiv number, since the Fibonacci-like sequence with seeds 570 and 13284 contains 57013284 itself.

It is not an unprimeable number, because it can be changed into a prime (57013283) 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 15 ways as a sum of consecutive naturals, for example, 51424 + ... + 52520.

It is an arithmetic number, because the mean of its divisors is an integer number (2859192).

Almost surely, 257013284 is an apocalyptic number.

It is an amenable number.

57013284 is an abundant number, since it is smaller than the sum of its proper divisors (80227932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57013284 is a wasteful number, since it uses less digits than its factorization.

57013284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236 (or 1234 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 57013284 is about 7550.7141384110. The cubic root of 57013284 is about 384.8800075827.

The spelling of 57013284 in words is "fifty-seven million, thirteen thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 12 61 71 122 142 183 213 244 284 366 426 732 852 1097 2194 3291 4331 4388 6582 8662 12993 13164 17324 25986 51972 66917 77887 133834 155774 200751 233661 267668 311548 401502 467322 803004 934644 4751107 9502214 14253321 19004428 28506642 57013284