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405424310142 = 23193350107349
BaseRepresentation
bin1011110011001010010…
…11000000011101111110
31102202110201100212122110
411321211023000131332
523120302110411032
6510125505554450
741201535530205
oct5714513003576
91382421325573
10405424310142
11146a374a9945
12666a7945a26
132c301370707
14158a075623c
15a82cc167cc
hex5e652c077e

405424310142 has 16 divisors (see below), whose sum is σ = 815049910800. Its totient is φ = 134441221632.

The previous prime is 405424310141. The next prime is 405424310171. The reversal of 405424310142 is 241013424504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405424310141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175052517 + ... + 175054832.

It is an arithmetic number, because the mean of its divisors is an integer number (50940619425).

Almost surely, 2405424310142 is an apocalyptic number.

405424310142 is an abundant number, since it is smaller than the sum of its proper divisors (409625600658).

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

405424310142 is a wasteful number, since it uses less digits than its factorization.

405424310142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350107547.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 405424310142 its reverse (241013424504), we get a palindrome (646437734646).

The spelling of 405424310142 in words is "four hundred five billion, four hundred twenty-four million, three hundred ten thousand, one hundred forty-two".

Divisors: 1 2 3 6 193 386 579 1158 350107349 700214698 1050322047 2100644094 67570718357 135141436714 202712155071 405424310142