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31100023301 = 59288110141
BaseRepresentation
bin11100111101101101…
…001011001000000101
32222021102011212122212
4130331231023020011
51002143101221201
622142005233205
72150454556604
oct347555131005
988242155585
1031100023301
111220a1748a6
12603b402805
132c18253569
141710591a3b
15c204b6abb
hex73db4b205

31100023301 has 12 divisors (see below), whose sum is σ = 31675109004. Its totient is φ = 30535190400.

The previous prime is 31100023249. The next prime is 31100023319. The reversal of 31100023301 is 10332000113.

It can be written as a sum of positive squares in 2 ways, for example, as 5535211201 + 25564812100 = 74399^2 + 159890^2 .

It is not a de Polignac number, because 31100023301 - 26 = 31100023237 is a prime.

It is a super-2 number, since 2×311000233012 (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 (31100023901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3061691 + ... + 3071831.

It is an arithmetic number, because the mean of its divisors is an integer number (2639592417).

Almost surely, 231100023301 is an apocalyptic number.

It is an amenable number.

31100023301 is a deficient number, since it is larger than the sum of its proper divisors (575085703).

31100023301 is an equidigital number, since it uses as much as digits as its factorization.

31100023301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11140 (or 11081 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 31100023301 its reverse (10332000113), we get a palindrome (41432023414).

The spelling of 31100023301 in words is "thirty-one billion, one hundred million, twenty-three thousand, three hundred one".

Divisors: 1 59 881 3481 10141 51979 598319 3066761 8934221 35300821 527119039 31100023301