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31100100130 = 2511282728183
BaseRepresentation
bin11100111101101101…
…011101111000100010
32222021102022210001101
4130331231131320202
51002143111201010
622142011025014
72150455326601
oct347555357042
988242283041
1031100100130
111220a2175a0
12603b43b16a
132c1827c518
1417105b1a38
15c204ce73a
hex73db5de22

31100100130 has 16 divisors (see below), whose sum is σ = 61069287744. Its totient is φ = 11309127280.

The previous prime is 31100100091. The next prime is 31100100131. The reversal of 31100100130 is 3100100113.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (31100100131) 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, 141363982 + ... + 141364201.

It is an arithmetic number, because the mean of its divisors is an integer number (3816830484).

Almost surely, 231100100130 is an apocalyptic number.

31100100130 is a deficient number, since it is larger than the sum of its proper divisors (29969187614).

31100100130 is a wasteful number, since it uses less digits than its factorization.

31100100130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282728201.

The product of its (nonzero) digits is 9, while the sum is 10.

Adding to 31100100130 its reverse (3100100113), we get a palindrome (34200200243).

The spelling of 31100100130 in words is "thirty-one billion, one hundred million, one hundred thousand, one hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 282728183 565456366 1413640915 2827281830 3110010013 6220020026 15550050065 31100100130