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31424044404 = 2233138366359
BaseRepresentation
bin11101010001000001…
…001101110101110100
310000002222212212001110
4131101001031311310
51003324023410104
622234102155020
72161500653544
oct352101156564
9100088785043
1031424044404
1112366065735
12610ba22a70
132c6a411b1c
141741619324
15c3db6ce89
hex75104dd74

31424044404 has 24 divisors (see below), whose sum is σ = 73557037120. Its totient is φ = 10441214784.

The previous prime is 31424044403. The next prime is 31424044481. The reversal of 31424044404 is 40444042413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31424044403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4179424 + ... + 4186935.

Almost surely, 231424044404 is an apocalyptic number.

It is an amenable number.

31424044404 is an abundant number, since it is smaller than the sum of its proper divisors (42132992716).

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

31424044404 is a wasteful number, since it uses less digits than its factorization.

31424044404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8366679 (or 8366677 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 31424044404 its reverse (40444042413), we get a palindrome (71868086817).

The spelling of 31424044404 in words is "thirty-one billion, four hundred twenty-four million, forty-four thousand, four hundred four".

Divisors: 1 2 3 4 6 12 313 626 939 1252 1878 3756 8366359 16732718 25099077 33465436 50198154 100396308 2618670367 5237340734 7856011101 10474681468 15712022202 31424044404