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20120903122 = 2103137712951
BaseRepresentation
bin10010101111010011…
…001001110111010010
31220221021000210011011
4102233103021313102
5312201422344442
613124324441134
71311420566065
oct225723116722
956837023134
1020120903122
1185957a8361
123a965491aa
131b88759948
14d8c3988dc
157cb69e117
hex4af4c9dd2

20120903122 has 16 divisors (see below), whose sum is σ = 30696861312. Its totient is φ = 9890042400.

The previous prime is 20120903111. The next prime is 20120903123. The reversal of 20120903122 is 22130902102.

It is a junction number, because it is equal to n+sod(n) for n = 20120903093 and 20120903102.

It is not an unprimeable number, because it can be changed into a prime (20120903123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328254 + ... + 384697.

It is an arithmetic number, because the mean of its divisors is an integer number (1918553832).

Almost surely, 220120903122 is an apocalyptic number.

20120903122 is a deficient number, since it is larger than the sum of its proper divisors (10575958190).

20120903122 is a wasteful number, since it uses less digits than its factorization.

20120903122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713193.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 20120903122 in words is "twenty billion, one hundred twenty million, nine hundred three thousand, one hundred twenty-two".

Divisors: 1 2 103 137 206 274 14111 28222 712951 1425902 73433953 97674287 146867906 195348574 10060451561 20120903122