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57972992 = 2871117173
BaseRepresentation
bin1101110100100…
…1100100000000
311001002022222212
43131021210000
5104320113432
65430321252
71302522320
oct335114400
9131068885
1057972992
112a7a6a70
12174b9228
13c01a45c
1479b1280
1551522b2
hex3749900

57972992 has 144 divisors (see below), whose sum is σ = 153643392. Its totient is φ = 21135360.

The previous prime is 57972989. The next prime is 57973031. The reversal of 57972992 is 29927975.

Its product of digits (714420) is a multiple of the sum of its prime divisors (210).

It is a self number, because there is not a number n which added to its sum of digits gives 57972992.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335018 + ... + 335190.

It is an arithmetic number, because the mean of its divisors is an integer number (1066968).

Almost surely, 257972992 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 57972992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76821696).

57972992 is an abundant number, since it is smaller than the sum of its proper divisors (95670400).

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

57972992 is a wasteful number, since it uses less digits than its factorization.

57972992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 210 counting only the distinct ones).

The product of its digits is 714420, while the sum is 50.

The square root of 57972992 is about 7613.9997373260. Note that the first 3 decimals coincide. The cubic root of 57972992 is about 387.0275716100.

The spelling of 57972992 in words is "fifty-seven million, nine hundred seventy-two thousand, nine hundred ninety-two".

Divisors: 1 2 4 7 8 11 14 16 17 22 28 32 34 44 56 64 68 77 88 112 119 128 136 154 173 176 187 224 238 256 272 308 346 352 374 448 476 544 616 692 704 748 896 952 1088 1211 1232 1309 1384 1408 1496 1792 1903 1904 2176 2422 2464 2618 2768 2816 2941 2992 3806 3808 4352 4844 4928 5236 5536 5882 5984 7612 7616 9688 9856 10472 11072 11764 11968 13321 15224 15232 19376 19712 20587 20944 22144 23528 23936 26642 30448 30464 32351 38752 41174 41888 44288 47056 47872 53284 60896 64702 77504 82348 83776 94112 106568 121792 129404 155008 164696 167552 188224 213136 226457 243584 258808 310016 329392 335104 376448 426272 452914 487168 517616 658784 752896 852544 905828 1035232 1317568 1705088 1811656 2070464 2635136 3410176 3623312 4140928 5270272 7246624 8281856 14493248 28986496 57972992