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11412432005 = 513732405149
BaseRepresentation
bin10101010000011101…
…11110010010000101
31002110100111121120212
422220032332102011
5141333040311010
65124240005205
7552545033342
oct125016762205
932410447525
1011412432005
114927025097
122266000805
1310cb4cc760
147a398d7c9
1546bdab505
hex2a83be485

11412432005 has 16 divisors (see below), whose sum is σ = 14950412400. Its totient is φ = 8312191488.

The previous prime is 11412431983. The next prime is 11412432007. The reversal of 11412432005 is 50023421411.

It can be written as a sum of positive squares in 8 ways, for example, as 5764801 + 11406667204 = 2401^2 + 106802^2 .

It is a cyclic number.

It is not a de Polignac number, because 11412432005 - 28 = 11412431749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11412432007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1197830 + ... + 1207319.

It is an arithmetic number, because the mean of its divisors is an integer number (934400775).

Almost surely, 211412432005 is an apocalyptic number.

It is an amenable number.

11412432005 is a deficient number, since it is larger than the sum of its proper divisors (3537980395).

11412432005 is a wasteful number, since it uses less digits than its factorization.

11412432005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405240.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 11412432005 its reverse (50023421411), we get a palindrome (61435853416).

The spelling of 11412432005 in words is "eleven billion, four hundred twelve million, four hundred thirty-two thousand, five".

Divisors: 1 5 13 65 73 365 949 4745 2405149 12025745 31266937 156334685 175575877 877879385 2282486401 11412432005