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42130110 = 23511432969
BaseRepresentation
bin1010000010110…
…1101010111110
32221021102122110
42200231222332
541241130420
64102554450
71021046211
oct240555276
987242573
1042130110
1121865a80
1212138a26
138961279
145849778
153a72ee0
hex282dabe

42130110 has 64 divisors (see below), whose sum is σ = 112907520. Its totient is φ = 9972480.

The previous prime is 42130079. The next prime is 42130111. The reversal of 42130110 is 1103124.

It is a happy number.

It is a super-2 number, since 2×421301102 = 3549892337224200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42130111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12706 + ... + 15674.

It is an arithmetic number, because the mean of its divisors is an integer number (1764180).

Almost surely, 242130110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42130110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56453760).

42130110 is an abundant number, since it is smaller than the sum of its proper divisors (70777410).

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

42130110 is a wasteful number, since it uses less digits than its factorization.

42130110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3033.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 42130110 is about 6490.7711406273. The cubic root of 42130110 is about 347.9612356081.

Adding to 42130110 its reverse (1103124), we get a palindrome (43233234).

The spelling of 42130110 in words is "forty-two million, one hundred thirty thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 43 55 66 86 110 129 165 215 258 330 430 473 645 946 1290 1419 2365 2838 2969 4730 5938 7095 8907 14190 14845 17814 29690 32659 44535 65318 89070 97977 127667 163295 195954 255334 326590 383001 489885 638335 766002 979770 1276670 1404337 1915005 2808674 3830010 4213011 7021685 8426022 14043370 21065055 42130110