Search a number
-
+
57187703620 = 22529263374903
BaseRepresentation
bin110101010000101001…
…110001101101000100
312110121111202100101001
4311100221301231010
51414110023003440
642134402543044
74063110313615
oct652051615504
9173544670331
1057187703620
1122286a71183
12b100067a84
135514c160a8
142aa718bc0c
15174a8d9b9a
hexd50a71b44

57187703620 has 48 divisors (see below), whose sum is σ = 124708066560. Its totient is φ = 22002248576.

The previous prime is 57187703609. The next prime is 57187703647. The reversal of 57187703620 is 2630778175.

It is a super-2 number, since 2×571877036202 (a number of 22 digits) contains 22 as substring.

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, 34912 + ... + 339991.

It is an arithmetic number, because the mean of its divisors is an integer number (2598084720).

Almost surely, 257187703620 is an apocalyptic number.

It is an amenable number.

57187703620 is an abundant number, since it is smaller than the sum of its proper divisors (67520362940).

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

57187703620 is a wasteful number, since it uses less digits than its factorization.

57187703620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375204 (or 375202 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 46.

The spelling of 57187703620 in words is "fifty-seven billion, one hundred eighty-seven million, seven hundred three thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 263 290 526 580 1052 1315 2630 5260 7627 15254 30508 38135 76270 152540 374903 749806 1499612 1874515 3749030 7498060 10872187 21744374 43488748 54360935 98599489 108721870 197198978 217443740 394397956 492997445 985994890 1971989780 2859385181 5718770362 11437540724 14296925905 28593851810 57187703620