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20413000434 = 2323271154563
BaseRepresentation
bin10011000000101101…
…011010101011110010
31221200121122212100010
4103000231122223302
5313301212003214
613213321235350
71321565432541
oct230055325362
957617585303
1020413000434
1187256743a2
123b58332b56
131c0411b6a8
14db90b2158
157e714b659
hex4c0b5aaf2

20413000434 has 32 divisors (see below), whose sum is σ = 42617539584. Its totient is φ = 6505972880.

The previous prime is 20413000339. The next prime is 20413000451. The reversal of 20413000434 is 43400031402.

It is a self number, because there is not a number n which added to its sum of digits gives 20413000434.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 346837 + ... + 401399.

It is an arithmetic number, because the mean of its divisors is an integer number (1331798112).

Almost surely, 220413000434 is an apocalyptic number.

20413000434 is an abundant number, since it is smaller than the sum of its proper divisors (22204539150).

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

20413000434 is a wasteful number, since it uses less digits than its factorization.

20413000434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57302.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20413000434 its reverse (43400031402), we get a palindrome (63813031836).

It can be divided in two parts, 2041 and 3000434, that added together give a triangular number (3002475 = T2450).

The spelling of 20413000434 in words is "twenty billion, four hundred thirteen million, four hundred thirty-four", and thus it is an aban number.

Divisors: 1 2 3 6 23 46 69 138 2711 5422 8133 16266 54563 62353 109126 124706 163689 187059 327378 374118 1254949 2509898 3764847 7529694 147920293 295840586 443760879 887521758 3402166739 6804333478 10206500217 20413000434