Search a number
-
+
57242850 = 2352754517
BaseRepresentation
bin1101101001011…
…1010011100010
310222201020102120
43122113103202
5104123232400
65402525110
71263361530
oct332272342
9128636376
1057242850
112a348445
1217206796
13bb23012
147861150
15505aca0
hex36974e2

57242850 has 48 divisors (see below), whose sum is σ = 162245568. Its totient is φ = 13083840.

The previous prime is 57242849. The next prime is 57242981. The reversal of 57242850 is 5824275.

It is a super-2 number, since 2×572428502 = 6553487752245000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26209 + ... + 28308.

It is an arithmetic number, because the mean of its divisors is an integer number (3380116).

Almost surely, 257242850 is an apocalyptic number.

57242850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57242850 is an abundant number, since it is smaller than the sum of its proper divisors (105002718).

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

57242850 is a wasteful number, since it uses less digits than its factorization.

57242850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54539 (or 54534 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 57242850 is about 7565.9004751583. The cubic root of 57242850 is about 385.3958934344.

The spelling of 57242850 in words is "fifty-seven million, two hundred forty-two thousand, eight hundred fifty".

Divisors: 1 2 3 5 6 7 10 14 15 21 25 30 35 42 50 70 75 105 150 175 210 350 525 1050 54517 109034 163551 272585 327102 381619 545170 763238 817755 1144857 1362925 1635510 1908095 2289714 2725850 3816190 4088775 5724285 8177550 9540475 11448570 19080950 28621425 57242850