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201211010082 = 23211178389449
BaseRepresentation
bin1011101101100100011…
…1000101110000100010
3201020100202000101000200
42323121013011300202
511244040004310312
6232233550130030
720352124236435
oct2733107056042
9636322011020
10201211010082
1178373407a85
1232bb51b0916
1315c88199ba4
149a4ac7981c
1553799370dc
hex2ed91c5c22

201211010082 has 12 divisors (see below), whose sum is σ = 435957188550. Its totient is φ = 67070336688.

The previous prime is 201211010081. The next prime is 201211010083. The reversal of 201211010082 is 280010112102.

It is an interprime number because it is at equal distance from previous prime (201211010081) and next prime (201211010083).

It can be written as a sum of positive squares in only one way, i.e., 192219988041 + 8991022041 = 438429^2 + 94821^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11178389449 = 201211010082 / (2 + 0 + 1 + 2 + 1 + 1 + 0 + 1 + 0 + 0 + 8 + 2).

It is not an unprimeable number, because it can be changed into a prime (201211010081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5589194707 + ... + 5589194742.

Almost surely, 2201211010082 is an apocalyptic number.

201211010082 is an abundant number, since it is smaller than the sum of its proper divisors (234746178468).

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

201211010082 is a wasteful number, since it uses less digits than its factorization.

201211010082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11178389457 (or 11178389454 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201211010082 its reverse (280010112102), we get a palindrome (481221122184).

The spelling of 201211010082 in words is "two hundred one billion, two hundred eleven million, ten thousand, eighty-two".

Divisors: 1 2 3 6 9 18 11178389449 22356778898 33535168347 67070336694 100605505041 201211010082