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310430142 = 232111567829
BaseRepresentation
bin10010100000001…
…100100110111110
3210122010111002200
4102200030212332
51113432231032
650445332330
710456420101
oct2240144676
9718114080
10310430142
1114a258840
1287b670a6
134c410399
142d32a738
151c3be47c
hex1280c9be

310430142 has 24 divisors (see below), whose sum is σ = 733744440. Its totient is φ = 94069680.

The previous prime is 310430101. The next prime is 310430143. The reversal of 310430142 is 241034013.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310430143) 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 11 ways as a sum of consecutive naturals, for example, 783717 + ... + 784112.

It is an arithmetic number, because the mean of its divisors is an integer number (30572685).

Almost surely, 2310430142 is an apocalyptic number.

310430142 is an abundant number, since it is smaller than the sum of its proper divisors (423314298).

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

310430142 is a wasteful number, since it uses less digits than its factorization.

310430142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567848 (or 1567845 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 310430142 is about 17619.0278392424. The cubic root of 310430142 is about 677.1028282623.

Adding to 310430142 its reverse (241034013), we get a palindrome (551464155).

The spelling of 310430142 in words is "three hundred ten million, four hundred thirty thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 1567829 3135658 4703487 9406974 14110461 17246119 28220922 34492238 51738357 103476714 155215071 310430142