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11212404402 = 234483416849
BaseRepresentation
bin10100111000100111…
…11011011010110010
31001221102010011022010
422130103323122302
5140430333420102
65052332423350
7544565602443
oct123423733262
931842104263
1011212404402
114834123421
12220b017b56
131098c35a24
147851a12ca
15459548d6c
hex29c4fb6b2

11212404402 has 16 divisors (see below), whose sum is σ = 22429864800. Its totient is φ = 3736625472.

The previous prime is 11212404367. The next prime is 11212404407. The reversal of 11212404402 is 20440421211.

It is not an unprimeable number, because it can be changed into a prime (11212404407) 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, 181527 + ... + 235322.

It is an arithmetic number, because the mean of its divisors is an integer number (1401866550).

Almost surely, 211212404402 is an apocalyptic number.

11212404402 is an abundant number, since it is smaller than the sum of its proper divisors (11217460398).

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

11212404402 is a wasteful number, since it uses less digits than its factorization.

11212404402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421337.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 11212404402 its reverse (20440421211), we get a palindrome (31652825613).

The spelling of 11212404402 in words is "eleven billion, two hundred twelve million, four hundred four thousand, four hundred two".

Divisors: 1 2 3 6 4483 8966 13449 26898 416849 833698 1250547 2501094 1868734067 3737468134 5606202201 11212404402