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10012010220 = 2232555622279
BaseRepresentation
bin10010101001100001…
…10010011011101100
3221211202100211001100
421110300302123230
5131001033311340
64333252043100
7503051453112
oct112460623354
927752324040
1010012010220
114278578513
121b35003490
13c37334004
146ad9abab2
153d8e81830
hex254c326ec

10012010220 has 36 divisors (see below), whose sum is σ = 30369764880. Its totient is φ = 2669869344.

The previous prime is 10012010179. The next prime is 10012010231. The reversal of 10012010220 is 2201021001.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27810960 + ... + 27811319.

It is an arithmetic number, because the mean of its divisors is an integer number (843604580).

Almost surely, 210012010220 is an apocalyptic number.

10012010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10012010220 is an abundant number, since it is smaller than the sum of its proper divisors (20357754660).

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

10012010220 is a wasteful number, since it uses less digits than its factorization.

10012010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55622294 (or 55622289 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 10012010220 its reverse (2201021001), we get a palindrome (12213031221).

The spelling of 10012010220 in words is "ten billion, twelve million, ten thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 55622279 111244558 166866837 222489116 278111395 333733674 500600511 556222790 667467348 834334185 1001201022 1112445580 1668668370 2002402044 2503002555 3337336740 5006005110 10012010220