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31434041442 = 2323686933161
BaseRepresentation
bin11101010001100111…
…010110100001100010
310000010200200202102010
4131101213112201202
51003334103311232
622235100333350
72161651641456
oct352147264142
9100120622363
1031434041442
1112370773651
126113244256
132c6c50222b
141742a9c666
15c3e9950cc
hex7519d6862

31434041442 has 32 divisors (see below), whose sum is σ = 65613006720. Its totient is φ = 10020686720.

The previous prime is 31434041381. The next prime is 31434041459. The reversal of 31434041442 is 24414043413.

It is a super-2 number, since 2×314340414422 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 931342 + ... + 964502.

It is an arithmetic number, because the mean of its divisors is an integer number (2050406460).

Almost surely, 231434041442 is an apocalyptic number.

31434041442 is an abundant number, since it is smaller than the sum of its proper divisors (34178965278).

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

31434041442 is a wasteful number, since it uses less digits than its factorization.

31434041442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40058.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 31434041442 its reverse (24414043413), we get a palindrome (55848084855).

The spelling of 31434041442 in words is "thirty-one billion, four hundred thirty-four million, forty-one thousand, four hundred forty-two".

Divisors: 1 2 3 6 23 46 69 138 6869 13738 20607 33161 41214 66322 99483 157987 198966 315974 473961 762703 947922 1525406 2288109 4576218 227782909 455565818 683348727 1366697454 5239006907 10478013814 15717020721 31434041442