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57748194 = 2337374129
BaseRepresentation
bin1101110001001…
…0101011100010
311000122220122000
43130102223202
5104240420234
65421424430
71300565040
oct334225342
9130586560
1057748194
112a663089
121740b116
13bc6c03a
147953390
15510a899
hex3712ae2

57748194 has 64 divisors (see below), whose sum is σ = 150662400. Its totient is φ = 16049664.

The previous prime is 57748169. The next prime is 57748199. The reversal of 57748194 is 49184775.

It is a happy number.

57748194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57748199) 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 31 ways as a sum of consecutive naturals, for example, 11922 + ... + 16050.

It is an arithmetic number, because the mean of its divisors is an integer number (2354100).

Almost surely, 257748194 is an apocalyptic number.

57748194 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 57748194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75331200).

57748194 is an abundant number, since it is smaller than the sum of its proper divisors (92914206).

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

57748194 is a wasteful number, since it uses less digits than its factorization.

57748194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4184 (or 4178 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 57748194 is about 7599.2232497802. The cubic root of 57748194 is about 386.5266732940.

The spelling of 57748194 in words is "fifty-seven million, seven hundred forty-eight thousand, one hundred ninety-four".

Divisors: 1 2 3 6 7 9 14 18 21 27 37 42 54 63 74 111 126 189 222 259 333 378 518 666 777 999 1554 1998 2331 4129 4662 6993 8258 12387 13986 24774 28903 37161 57806 74322 86709 111483 152773 173418 222966 260127 305546 458319 520254 780381 916638 1069411 1374957 1560762 2138822 2749914 3208233 4124871 6416466 8249742 9624699 19249398 28874097 57748194