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57116472 = 23371272677
BaseRepresentation
bin1101100111100…
…0011100111000
310222110211001220
43121320130320
5104110211342
65400112040
71262324220
oct331703470
9128424056
1057116472
112a2714a6
1217165620
13baaa63a
14782b080
1550335ec
hex3678738

57116472 has 64 divisors (see below), whose sum is σ = 164536320. Its totient is φ = 16184448.

The previous prime is 57116471. The next prime is 57116473. The reversal of 57116472 is 27461175.

It is an interprime number because it is at equal distance from previous prime (57116471) and next prime (57116473).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57116471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19998 + ... + 22674.

It is an arithmetic number, because the mean of its divisors is an integer number (2570880).

Almost surely, 257116472 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 57116472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82268160).

57116472 is an abundant number, since it is smaller than the sum of its proper divisors (107419848).

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

57116472 is a wasteful number, since it uses less digits than its factorization.

57116472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820 (or 2816 counting only the distinct ones).

The product of its digits is 11760, while the sum is 33.

The square root of 57116472 is about 7557.5440455217. The cubic root of 57116472 is about 385.1120649766.

The spelling of 57116472 in words is "fifty-seven million, one hundred sixteen thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 127 168 254 381 508 762 889 1016 1524 1778 2667 2677 3048 3556 5334 5354 7112 8031 10668 10708 16062 18739 21336 21416 32124 37478 56217 64248 74956 112434 149912 224868 339979 449736 679958 1019937 1359916 2039874 2379853 2719832 4079748 4759706 7139559 8159496 9519412 14279118 19038824 28558236 57116472