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402144343242 = 23199933528793
BaseRepresentation
bin1011101101000011010…
…10111011010011001010
31102110000010112021220220
411312201222323103022
523042042422440432
6504424220530510
741024340342405
oct5664152732312
91373003467826
10402144343242
11145603aa81a4
1265b313b0a36
132bbca9838b5
141566ccb2d3c
15a6d9cbe72c
hex5da1abb4ca

402144343242 has 16 divisors (see below), whose sum is σ = 804691056000. Its totient is φ = 133981052832.

The previous prime is 402144343229. The next prime is 402144343243. The reversal of 402144343242 is 242343441204.

It is a super-2 number, since 2×4021443432422 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (402144343243) 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, 16752403 + ... + 16776390.

It is an arithmetic number, because the mean of its divisors is an integer number (50293191000).

Almost surely, 2402144343242 is an apocalyptic number.

402144343242 is an abundant number, since it is smaller than the sum of its proper divisors (402546712758).

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

402144343242 is a wasteful number, since it uses less digits than its factorization.

402144343242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33530797.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 402144343242 its reverse (242343441204), we get a palindrome (644487784446).

The spelling of 402144343242 in words is "four hundred two billion, one hundred forty-four million, three hundred forty-three thousand, two hundred forty-two".

Divisors: 1 2 3 6 1999 3998 5997 11994 33528793 67057586 100586379 201172758 67024057207 134048114414 201072171621 402144343242