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31201140134 = 219779190711
BaseRepresentation
bin11101000011101110…
…111001110110100110
32222112110110010212202
4131003232321312212
51002344442441014
622200020414502
72153123213063
oct350356716646
988473403782
1031201140134
111226125942a
126069247432
132c331984c8
14171db93c6a
15c292dc3de
hex743bb9da6

31201140134 has 8 divisors (see below), whose sum is σ = 47039282928. Its totient is φ = 15521379160.

The previous prime is 31201140083. The next prime is 31201140137. The reversal of 31201140134 is 43104110213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×312011401343 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31201140137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39594962 + ... + 39595749.

It is an arithmetic number, because the mean of its divisors is an integer number (5879910366).

Almost surely, 231201140134 is an apocalyptic number.

31201140134 is a deficient number, since it is larger than the sum of its proper divisors (15838142794).

31201140134 is a wasteful number, since it uses less digits than its factorization.

31201140134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79190910.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31201140134 its reverse (43104110213), we get a palindrome (74305250347).

The spelling of 31201140134 in words is "thirty-one billion, two hundred one million, one hundred forty thousand, one hundred thirty-four".

Divisors: 1 2 197 394 79190711 158381422 15600570067 31201140134