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57234726 = 232191131481
BaseRepresentation
bin1101101001010…
…1010100100110
310222200211021200
43122111110212
5104123002401
65402423330
71263326043
oct332252446
9128624250
1057234726
112a34232a
1217201b46
13bb1c403
14785c1ca
155058686
hex3695526

57234726 has 48 divisors (see below), whose sum is σ = 131779440. Its totient is φ = 17902080.

The previous prime is 57234721. The next prime is 57234739. The reversal of 57234726 is 62743275.

It is a happy number.

57234726 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57234721) 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 23 ways as a sum of consecutive naturals, for example, 37906 + ... + 39386.

It is an arithmetic number, because the mean of its divisors is an integer number (2745405).

Almost surely, 257234726 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57234726, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65889720).

57234726 is an abundant number, since it is smaller than the sum of its proper divisors (74544714).

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

57234726 is a wasteful number, since it uses less digits than its factorization.

57234726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621 (or 1618 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 57234726 is about 7565.3635735502. The cubic root of 57234726 is about 385.3776605642.

The spelling of 57234726 in words is "fifty-seven million, two hundred thirty-four thousand, seven hundred twenty-six".

Divisors: 1 2 3 6 9 18 19 38 57 113 114 171 226 339 342 678 1017 1481 2034 2147 2962 4294 4443 6441 8886 12882 13329 19323 26658 28139 38646 56278 84417 167353 168834 253251 334706 502059 506502 1004118 1506177 3012354 3179707 6359414 9539121 19078242 28617363 57234726