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57351400 = 23521392063
BaseRepresentation
bin1101101011000…
…1110011101000
310222220202022221
43122301303220
5104140221100
65405123424
71264323151
oct332616350
9128822287
1057351400
112a411a57
1217259574
13bb60552
14788c928
15507d01a
hex36b1ce8

57351400 has 48 divisors (see below), whose sum is σ = 134366400. Its totient is φ = 22764480.

The previous prime is 57351391. The next prime is 57351401. The reversal of 57351400 is 415375.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (57351401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26769 + ... + 28831.

It is an arithmetic number, because the mean of its divisors is an integer number (2799300).

Almost surely, 257351400 is an apocalyptic number.

57351400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57351400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67183200).

57351400 is an abundant number, since it is smaller than the sum of its proper divisors (77015000).

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

57351400 is a wasteful number, since it uses less digits than its factorization.

57351400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218 (or 2209 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 57351400 is about 7573.0707114089. The cubic root of 57351400 is about 385.6393492152.

Adding to 57351400 its reverse (415375), we get a palindrome (57766775).

The spelling of 57351400 in words is "fifty-seven million, three hundred fifty-one thousand, four hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 139 200 278 556 695 1112 1390 2063 2780 3475 4126 5560 6950 8252 10315 13900 16504 20630 27800 41260 51575 82520 103150 206300 286757 412600 573514 1147028 1433785 2294056 2867570 5735140 7168925 11470280 14337850 28675700 57351400