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13405030406 = 2531071181893
BaseRepresentation
bin11000111110000000…
…01000100000000110
31021121012221002201122
430133000020200012
5204423141433111
610054100153542
7653121610205
oct143700104006
937535832648
1013405030406
115759876829
1227213988b2
131358284b71
1491247d23c
15536caacdb
hex31f008806

13405030406 has 16 divisors (see below), whose sum is σ = 20678417424. Its totient is φ = 6514588704.

The previous prime is 13405030393. The next prime is 13405030409. The reversal of 13405030406 is 60403050431.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13405030409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579605 + ... + 602288.

It is an arithmetic number, because the mean of its divisors is an integer number (1292401089).

Almost surely, 213405030406 is an apocalyptic number.

13405030406 is a deficient number, since it is larger than the sum of its proper divisors (7273387018).

13405030406 is a wasteful number, since it uses less digits than its factorization.

13405030406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182055.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 13405030406 its reverse (60403050431), we get a palindrome (73808080837).

The spelling of 13405030406 in words is "thirteen billion, four hundred five million, thirty thousand, four hundred six".

Divisors: 1 2 53 106 107 214 5671 11342 1181893 2363786 62640329 125280658 126462551 252925102 6702515203 13405030406