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57245100 = 223521121983
BaseRepresentation
bin1101101001011…
…1110110101100
310222201100111220
43122113312230
5104123320400
65402543340
71263401223
oct332276654
9128640456
1057245100
112a34a100
1217207b50
13bb24053
147861cba
15505b7a0
hex3697dac

57245100 has 216 divisors, whose sum is σ = 193945920. Its totient is φ = 12988800.

The previous prime is 57245077. The next prime is 57245113. The reversal of 57245100 is 154275.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 689659 + ... + 689741.

Almost surely, 257245100 is an apocalyptic number.

57245100 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 57245100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96972960).

57245100 is an abundant number, since it is smaller than the sum of its proper divisors (136700820).

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

57245100 is a wasteful number, since it uses less digits than its factorization.

57245100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 123 counting only the distinct ones).

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

The square root of 57245100 is about 7566.0491671678. The cubic root of 57245100 is about 385.4009428534.

Adding to 57245100 its reverse (154275), we get a palindrome (57399375).

The spelling of 57245100 in words is "fifty-seven million, two hundred forty-five thousand, one hundred".