Search a number
-
+
57985872 = 24371931293
BaseRepresentation
bin1101110100110…
…0101101010000
311001002222122220
43131030231100
5104321021442
65430501040
71302605010
oct335145520
9131088586
1057985872
112a80570a
1217504780
13c023289
1479b5c40
155155eec
hex374cb50

57985872 has 160 divisors (see below), whose sum is σ = 186654720. Its totient is φ = 15137280.

The previous prime is 57985867. The next prime is 57985897. The reversal of 57985872 is 27858975.

57985872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×579858722 = 6724722703200768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 197758 + ... + 198050.

It is an arithmetic number, because the mean of its divisors is an integer number (1166592).

Almost surely, 257985872 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 57985872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93327360).

57985872 is an abundant number, since it is smaller than the sum of its proper divisors (128668848).

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

57985872 is a wasteful number, since it uses less digits than its factorization.

57985872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361 (or 355 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 51.

The square root of 57985872 is about 7614.8455007308. The cubic root of 57985872 is about 387.0562317719.

The spelling of 57985872 in words is "fifty-seven million, nine hundred eighty-five thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 19 21 24 28 31 38 42 48 56 57 62 76 84 93 112 114 124 133 152 168 186 217 228 248 266 293 304 336 372 399 434 456 496 532 586 589 651 744 798 868 879 912 1064 1172 1178 1302 1488 1596 1736 1758 1767 2051 2128 2344 2356 2604 3192 3472 3516 3534 4102 4123 4688 4712 5208 5567 6153 6384 7032 7068 8204 8246 9083 9424 10416 11134 12306 12369 14064 14136 16408 16492 16701 18166 22268 24612 24738 27249 28272 32816 32984 33402 36332 38969 44536 49224 49476 54498 63581 65968 66804 72664 77938 89072 98448 98952 108996 116907 127162 133608 145328 155876 172577 190743 197904 217992 233814 254324 267216 311752 345154 381486 435984 467628 508648 517731 623504 690308 762972 935256 1017296 1035462 1208039 1380616 1525944 1870512 2070924 2416078 2761232 3051888 3624117 4141848 4832156 7248234 8283696 9664312 14496468 19328624 28992936 57985872