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31101431030 = 253110143103
BaseRepresentation
bin11100111101110010…
…100010110011110110
32222021111211101200222
4130331302202303312
51002143431243110
622142055334342
72150502542015
oct347562426366
988244741628
1031101431030
111220aa4650a
12603b9813b2
132c18627237
14171083aa7c
15c20693c55
hex73dca2cf6

31101431030 has 8 divisors (see below), whose sum is σ = 55982575872. Its totient is φ = 12440572408.

The previous prime is 31101431003. The next prime is 31101431033. The reversal of 31101431030 is 3013410113.

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

It is a super-2 number, since 2×311014310302 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31101431033) 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, 1555071542 + ... + 1555071561.

It is an arithmetic number, because the mean of its divisors is an integer number (6997821984).

Almost surely, 231101431030 is an apocalyptic number.

31101431030 is a deficient number, since it is larger than the sum of its proper divisors (24881144842).

31101431030 is a wasteful number, since it uses less digits than its factorization.

31101431030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3110143110.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31101431030 its reverse (3013410113), we get a palindrome (34114841143).

The spelling of 31101431030 in words is "thirty-one billion, one hundred one million, four hundred thirty-one thousand, thirty".

Divisors: 1 2 5 10 3110143103 6220286206 15550715515 31101431030