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57142050 = 2352754421
BaseRepresentation
bin1101100111111…
…0101100100010
310222112010011020
43121332230202
5104112021200
65400430310
71262461620
oct331765442
9128463136
1057142050
112a289739
1217178396
13bab9184
147836510
15503aea0
hex367eb22

57142050 has 48 divisors (see below), whose sum is σ = 161959872. Its totient is φ = 13060800.

The previous prime is 57142039. The next prime is 57142061. The reversal of 57142050 is 5024175.

It is an interprime number because it is at equal distance from previous prime (57142039) and next prime (57142061).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57142050.

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, 26161 + ... + 28260.

It is an arithmetic number, because the mean of its divisors is an integer number (3374164).

Almost surely, 257142050 is an apocalyptic number.

57142050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57142050 is an abundant number, since it is smaller than the sum of its proper divisors (104817822).

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

57142050 is a wasteful number, since it uses less digits than its factorization.

57142050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54443 (or 54438 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 57142050 is about 7559.2360725142. The cubic root of 57142050 is about 385.1695435872.

The spelling of 57142050 in words is "fifty-seven million, one hundred forty-two thousand, 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 54421 108842 163263 272105 326526 380947 544210 761894 816315 1142841 1360525 1632630 1904735 2285682 2721050 3809470 4081575 5714205 8163150 9523675 11428410 19047350 28571025 57142050