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31004224141 = 118940977431
BaseRepresentation
bin11100110111111111…
…101110101010001101
32222000201220202220211
4130313333232222031
51001444040133031
622124304042421
72145212362012
oct346777565215
988021822824
1031004224141
1112170092540
126013303411
132c01450b77
141701975709
15c16d91bb1
hex737feea8d

31004224141 has 16 divisors (see below), whose sum is σ = 34286889600. Its totient is φ = 27800467200.

The previous prime is 31004224117. The next prime is 31004224157. The reversal of 31004224141 is 14142240013.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-31004224141 is a prime.

It is a super-2 number, since 2×310042241412 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31004225141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361696 + ... + 439126.

It is an arithmetic number, because the mean of its divisors is an integer number (2142930600).

Almost surely, 231004224141 is an apocalyptic number.

It is an amenable number.

31004224141 is a deficient number, since it is larger than the sum of its proper divisors (3282665459).

31004224141 is a wasteful number, since it uses less digits than its factorization.

31004224141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77940.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 31004224141 its reverse (14142240013), we get a palindrome (45146464154).

The spelling of 31004224141 in words is "thirty-one billion, four million, two hundred twenty-four thousand, one hundred forty-one".

Divisors: 1 11 89 409 979 4499 36401 77431 400411 851741 6891359 31669279 75804949 348362069 2818565831 31004224141