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20013202304530 = 2547203669209071
BaseRepresentation
bin1001000110011101011111…
…10100000110111000010010
32121212020120110221001202121
410203032233310012320102
510110344014242221110
6110321534353204454
74133622544532431
oct443165764067022
977766513831677
1020013202304530
116416607a59916
1222b2838b6072a
13b22310568956
144d2903809118
1524a8c8e49cda
hex1233afd06e12

20013202304530 has 32 divisors (see below), whose sum is σ = 36790583823360. Its totient is φ = 7834879851840.

The previous prime is 20013202304521. The next prime is 20013202304591. The reversal of 20013202304530 is 3540320231002.

It is a junction number, because it is equal to n+sod(n) for n = 20013202304495 and 20013202304504.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95619895 + ... + 95828965.

It is an arithmetic number, because the mean of its divisors is an integer number (1149705744480).

Almost surely, 220013202304530 is an apocalyptic number.

20013202304530 is a deficient number, since it is larger than the sum of its proper divisors (16777381518830).

20013202304530 is a wasteful number, since it uses less digits than its factorization.

20013202304530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412794.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 20013202304530 its reverse (3540320231002), we get a palindrome (23553522535532).

The spelling of 20013202304530 in words is "twenty trillion, thirteen billion, two hundred two million, three hundred four thousand, five hundred thirty".

Divisors: 1 2 5 10 47 94 235 470 203669 209071 407338 418142 1018345 1045355 2036690 2090710 9572443 9826337 19144886 19652674 47862215 49131685 95724430 98263370 42581281499 85162562998 212906407495 425812814990 2001320230453 4002640460906 10006601152265 20013202304530