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561429080 = 235172335897
BaseRepresentation
bin100001011101101…
…011101001011000
31110010102112220122
4201131223221120
52122211212310
6131413212412
716625032322
oct4135535130
91403375818
10561429080
11268a03a83
12138031108
138c412674
14547c6612
153444e555
hex2176ba58

561429080 has 64 divisors (see below), whose sum is σ = 1395714240. Its totient is φ = 202166272.

The previous prime is 561429061. The next prime is 561429133. The reversal of 561429080 is 80924165.

561429080 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 2×5614290802 = 630405223739292800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 561429080.

It is a congruent number.

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, 2309 + ... + 33588.

It is an arithmetic number, because the mean of its divisors is an integer number (21808035).

Almost surely, 2561429080 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 561429080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (697857120).

561429080 is an abundant number, since it is smaller than the sum of its proper divisors (834285160).

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

561429080 is a wasteful number, since it uses less digits than its factorization.

561429080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35948 (or 35944 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 561429080 is about 23694.4947192381. The cubic root of 561429080 is about 824.9576127595.

The spelling of 561429080 in words is "five hundred sixty-one million, four hundred twenty-nine thousand, eighty".

Divisors: 1 2 4 5 8 10 17 20 23 34 40 46 68 85 92 115 136 170 184 230 340 391 460 680 782 920 1564 1955 3128 3910 7820 15640 35897 71794 143588 179485 287176 358970 610249 717940 825631 1220498 1435880 1651262 2440996 3051245 3302524 4128155 4881992 6102490 6605048 8256310 12204980 14035727 16512620 24409960 28071454 33025240 56142908 70178635 112285816 140357270 280714540 561429080