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1012120206 = 23421400681
BaseRepresentation
bin111100010100111…
…011101010001110
32121112111000220120
4330110323222032
54033100321311
6244233125410
734036610526
oct7424735216
92545430816
101012120206
1147a351989
12242b59866
131318c1ac6
14985c4686
155dcc7706
hex3c53ba8e

1012120206 has 16 divisors (see below), whose sum is σ = 2029053648. Its totient is φ = 336571200.

The previous prime is 1012120201. The next prime is 1012120217. The reversal of 1012120206 is 6020212101.

It is a super-2 number, since 2×10121202062 = 2048774622786964872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012120201) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 197815 + ... + 202866.

It is an arithmetic number, because the mean of its divisors is an integer number (126815853).

Almost surely, 21012120206 is an apocalyptic number.

1012120206 is an abundant number, since it is smaller than the sum of its proper divisors (1016933442).

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

1012120206 is a wasteful number, since it uses less digits than its factorization.

1012120206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401107.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1012120206 is about 31813.8367066910. The cubic root of 1012120206 is about 1004.0238555360.

Adding to 1012120206 its reverse (6020212101), we get a palindrome (7032332307).

The spelling of 1012120206 in words is "one billion, twelve million, one hundred twenty thousand, two hundred six".

Divisors: 1 2 3 6 421 842 1263 2526 400681 801362 1202043 2404086 168686701 337373402 506060103 1012120206