Search a number
-
+
57678930790 = 25134161717539
BaseRepresentation
bin110101101101111011…
…101010001101100110
312111212202002021100221
4311231323222031212
51421111301241130
642255231354554
74111223552035
oct655573521546
9174782067327
1057678930790
1122509286448
12b218682a5a
135592919060
142b124dc71c
151778abd87a
hexd6deea366

57678930790 has 64 divisors (see below), whose sum is σ = 114727596480. Its totient is φ = 20742543360.

The previous prime is 57678930737. The next prime is 57678930839. The reversal of 57678930790 is 9703987675.

It is a super-2 number, since 2×576789307902 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3279841 + ... + 3297379.

It is an arithmetic number, because the mean of its divisors is an integer number (1792618695).

Almost surely, 257678930790 is an apocalyptic number.

57678930790 is a deficient number, since it is larger than the sum of its proper divisors (57048665690).

57678930790 is a wasteful number, since it uses less digits than its factorization.

57678930790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18217.

The product of its (nonzero) digits is 20003760, while the sum is 61.

The spelling of 57678930790 in words is "fifty-seven billion, six hundred seventy-eight million, nine hundred thirty thousand, seven hundred ninety".

Divisors: 1 2 5 10 13 26 41 65 82 130 205 410 533 617 1066 1234 2665 3085 5330 6170 8021 16042 17539 25297 35078 40105 50594 80210 87695 126485 175390 228007 252970 328861 456014 657722 719099 1140035 1438198 1644305 2280070 3288610 3595495 7190990 9348287 10821563 18696574 21643126 46741435 54107815 93482870 108215630 140680319 281360638 443684083 703401595 887368166 1406803190 2218420415 4436840830 5767893079 11535786158 28839465395 57678930790