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57466980 = 2232529101109
BaseRepresentation
bin1101101100111…
…0000001100100
311000010121212200
43123032001210
5104202420410
65411414500
71265314134
oct333160144
9130117780
1057466980
112a49087a
12172b4430
13bba103c
1478bcac4
1550a23c0
hex36ce064

57466980 has 144 divisors (see below), whose sum is σ = 183783600. Its totient is φ = 14515200.

The previous prime is 57466961. The next prime is 57466993. The reversal of 57466980 is 8966475.

It can be written as a sum of positive squares in 8 ways, for example, as 6230016 + 51236964 = 2496^2 + 7158^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 527166 + ... + 527274.

It is an arithmetic number, because the mean of its divisors is an integer number (1276275).

Almost surely, 257466980 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 57466980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91891800).

57466980 is an abundant number, since it is smaller than the sum of its proper divisors (126316620).

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

57466980 is a wasteful number, since it uses less digits than its factorization.

57466980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 57466980 is about 7580.6978570578. The cubic root of 57466980 is about 385.8982344236.

The spelling of 57466980 in words is "fifty-seven million, four hundred sixty-six thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 29 30 36 45 58 60 87 90 101 109 116 145 174 180 202 218 261 290 303 327 348 404 435 436 505 522 545 580 606 654 870 909 981 1010 1044 1090 1212 1305 1308 1515 1635 1740 1818 1962 2020 2180 2610 2929 3030 3161 3270 3636 3924 4545 4905 5220 5858 6060 6322 6540 8787 9090 9483 9810 11009 11716 12644 14645 15805 17574 18180 18966 19620 22018 26361 28449 29290 31610 33027 35148 37932 43935 44036 47415 52722 55045 56898 58580 63220 66054 87870 94830 99081 105444 110090 113796 131805 132108 142245 165135 175740 189660 198162 220180 263610 284490 319261 330270 396324 495405 527220 568980 638522 660540 957783 990810 1277044 1596305 1915566 1981620 2873349 3192610 3831132 4788915 5746698 6385220 9577830 11493396 14366745 19155660 28733490 57466980