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20313000103 = 1117718318433
BaseRepresentation
bin10010111010101111…
…111100100010100111
31221102122111022200011
4102322233330202213
5313100112000403
613155350031051
71316242436434
oct227257744247
957378438604
1020313000103
1186841826a0
123b2a948487
131bb94a79b6
14da9ac0b8b
157dd496a6d
hex4babfc8a7

20313000103 has 32 divisors (see below), whose sum is σ = 24081587712. Its totient is φ = 16927948800.

The previous prime is 20313000067. The next prime is 20313000167. The reversal of 20313000103 is 30100031302.

It is a cyclic number.

It is not a de Polignac number, because 20313000103 - 213 = 20312991911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313000403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1092775 + ... + 1111207.

It is an arithmetic number, because the mean of its divisors is an integer number (752549616).

Almost surely, 220313000103 is an apocalyptic number.

20313000103 is a deficient number, since it is larger than the sum of its proper divisors (3768587609).

20313000103 is a wasteful number, since it uses less digits than its factorization.

20313000103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18615.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 20313000103 its reverse (30100031302), we get a palindrome (50413031405).

The spelling of 20313000103 in words is "twenty billion, three hundred thirteen million, one hundred three", and thus it is an aban number.

Divisors: 1 11 17 71 83 187 781 913 1207 1411 5893 13277 15521 18433 64823 100181 202763 313361 1101991 1308743 1529939 3446971 14396173 16829329 22248631 26008963 108625669 244734941 286098593 1194882359 1846636373 20313000103