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42310780 = 2252115539
BaseRepresentation
bin1010000101100…
…1110001111100
32221121121110221
42201121301330
541312421110
64110511124
71022431021
oct241316174
987547427
1042310780
1121979796
12122054a4
1389c5585
145895548
153aab7da
hex2859c7c

42310780 has 12 divisors (see below), whose sum is σ = 88852680. Its totient is φ = 16924304.

The previous prime is 42310771. The next prime is 42310781. The reversal of 42310780 is 8701324.

42310780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42310781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1057750 + ... + 1057789.

It is an arithmetic number, because the mean of its divisors is an integer number (7404390).

Almost surely, 242310780 is an apocalyptic number.

It is an amenable number.

42310780 is an abundant number, since it is smaller than the sum of its proper divisors (46541900).

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

42310780 is a wasteful number, since it uses less digits than its factorization.

42310780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115548 (or 2115546 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 42310780 is about 6504.6737043452. The cubic root of 42310780 is about 348.4579231730.

The spelling of 42310780 in words is "forty-two million, three hundred ten thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 2115539 4231078 8462156 10577695 21155390 42310780