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218010010812 = 223115261313931
BaseRepresentation
bin1100101100001001101…
…0001100010010111100
3202211201111022000202220
43023002122030102330
512032441030321222
6244052531045340
721515330342106
oct3130232142274
9684644260686
10218010010812
1184503a70960
1236303140850
13177346461c9
14a7a1d96576
155a0e658b5c
hex32c268c4bc

218010010812 has 48 divisors (see below), whose sum is σ = 555041821824. Its totient is φ = 66050872000.

The previous prime is 218010010789. The next prime is 218010010847.

218010010812 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537487 + ... + 851417.

It is an arithmetic number, because the mean of its divisors is an integer number (11563371288).

Almost surely, 2218010010812 is an apocalyptic number.

218010010812 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

218010010812 is an abundant number, since it is smaller than the sum of its proper divisors (337031811012).

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

218010010812 is a wasteful number, since it uses less digits than its factorization.

218010010812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319210 (or 319208 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 24.

It can be divided in two parts, 2180100 and 10812, that added together give a palindrome (2190912).

The spelling of 218010010812 in words is "two hundred eighteen billion, ten million, ten thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 5261 10522 15783 21044 31566 57871 63132 115742 173613 231484 313931 347226 627862 694452 941793 1255724 1883586 3453241 3767172 6906482 10359723 13812964 20719446 41438892 1651590991 3303181982 4954772973 6606363964 9909545946 18167500901 19819091892 36335001802 54502502703 72670003604 109005005406 218010010812