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31100302310 = 2571140390003
BaseRepresentation
bin11100111101101110…
…001111001111100110
32222021102201001101112
4130331232033033212
51002143134133220
622142015225022
72150460131210
oct347556171746
988242631345
1031100302310
111220a345490
12603b518172
132c1832055c
1417106255b0
15c2051e5c5
hex73db8f3e6

31100302310 has 32 divisors (see below), whose sum is σ = 69793926912. Its totient is φ = 9693600480.

The previous prime is 31100302309. The next prime is 31100302369. The reversal of 31100302310 is 1320300113.

It is a super-2 number, since 2×311003023102 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20194232 + ... + 20195771.

It is an arithmetic number, because the mean of its divisors is an integer number (2181060216).

Almost surely, 231100302310 is an apocalyptic number.

31100302310 is an abundant number, since it is smaller than the sum of its proper divisors (38693624602).

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

31100302310 is a wasteful number, since it uses less digits than its factorization.

31100302310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40390028.

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

Adding to 31100302310 its reverse (1320300113), we get a palindrome (32420602423).

The spelling of 31100302310 in words is "thirty-one billion, one hundred million, three hundred two thousand, three hundred ten".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 40390003 80780006 201950015 282730021 403900030 444290033 565460042 888580066 1413650105 2221450165 2827300210 3110030231 4442900330 6220060462 15550151155 31100302310