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57226260 = 223571347223
BaseRepresentation
bin1101101001001…
…1010000010100
310222200101200010
43122103100110
5104122220020
65402320220
71263262260
oct332232024
9128611603
1057226260
112a336a33
12171b9070
13bb185c0
1478590a0
155055de0
hex3693414

57226260 has 192 divisors, whose sum is σ = 202309632. Its totient is φ = 11764224.

The previous prime is 57226219. The next prime is 57226289. The reversal of 57226260 is 6262275.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 256509 + ... + 256731.

It is an arithmetic number, because the mean of its divisors is an integer number (1053696).

Almost surely, 257226260 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57226260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101154816).

57226260 is an abundant number, since it is smaller than the sum of its proper divisors (145083372).

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

57226260 is a wasteful number, since it uses less digits than its factorization.

57226260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 57226260 is about 7564.8040291867. The cubic root of 57226260 is about 385.3586583000.

The spelling of 57226260 in words is "fifty-seven million, two hundred twenty-six thousand, two hundred sixty".