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403230042 = 23353140891
BaseRepresentation
bin11000000010001…
…100110101011010
31001002202012122000
4120002030311122
51311211330132
6104002341430
712664253535
oct3002146532
91032665560
10403230042
11197681776
12b305a876
1365702877
143b7a5a1c
152560087c
hex1808cd5a

403230042 has 32 divisors (see below), whose sum is σ = 912980160. Its totient is φ = 131873040.

The previous prime is 403230031. The next prime is 403230059. The reversal of 403230042 is 240032304.

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

It is a junction number, because it is equal to n+sod(n) for n = 403229997 and 403230024.

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, 67584 + ... + 73307.

It is an arithmetic number, because the mean of its divisors is an integer number (28530630).

Almost surely, 2403230042 is an apocalyptic number.

403230042 is an abundant number, since it is smaller than the sum of its proper divisors (509750118).

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

403230042 is a wasteful number, since it uses less digits than its factorization.

403230042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140955 (or 140949 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 403230042 is about 20080.5886865898. The cubic root of 403230042 is about 738.7842479420.

Adding to 403230042 its reverse (240032304), we get a palindrome (643262346).

The spelling of 403230042 in words is "four hundred three million, two hundred thirty thousand, forty-two".

Divisors: 1 2 3 6 9 18 27 53 54 106 159 318 477 954 1431 2862 140891 281782 422673 845346 1268019 2536038 3804057 7467223 7608114 14934446 22401669 44803338 67205007 134410014 201615021 403230042