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31100113002 = 237740478881
BaseRepresentation
bin11100111101101101…
…100001000001101010
32222021102100102201010
4130331231201001222
51002143112104002
622142011204350
72150455412250
oct347555410152
988242312633
1031100113002
111220a226232
12603b4466b6
132c1828533a
1417105b65d0
15c204d346c
hex73db6106a

31100113002 has 16 divisors (see below), whose sum is σ = 71085972672. Its totient is φ = 8885746560.

The previous prime is 31100113001. The next prime is 31100113003. The reversal of 31100113002 is 20031100113.

It is an interprime number because it is at equal distance from previous prime (31100113001) and next prime (31100113003).

It is not an unprimeable number, because it can be changed into a prime (31100113001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370239399 + ... + 370239482.

It is an arithmetic number, because the mean of its divisors is an integer number (4442873292).

Almost surely, 231100113002 is an apocalyptic number.

31100113002 is an abundant number, since it is smaller than the sum of its proper divisors (39985859670).

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

31100113002 is a wasteful number, since it uses less digits than its factorization.

31100113002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740478893.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 31100113002 its reverse (20031100113), we get a palindrome (51131213115).

The spelling of 31100113002 in words is "thirty-one billion, one hundred million, one hundred thirteen thousand, two".

Divisors: 1 2 3 6 7 14 21 42 740478881 1480957762 2221436643 4442873286 5183352167 10366704334 15550056501 31100113002