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20127447332 = 2229173512477
BaseRepresentation
bin10010101111101100…
…000111100100100100
31220221201100021010022
4102233230013210210
5312210111303312
613125121014312
71311530323316
oct225754074444
956851307108
1020127447332
1185994680a3
123a98784398
131b89c0b565
14d8d1bd7b6
157cc043172
hex4afb07924

20127447332 has 12 divisors (see below), whose sum is σ = 36437620380. Its totient is φ = 9716698656.

The previous prime is 20127447323. The next prime is 20127447341. The reversal of 20127447332 is 23374472102.

It is an interprime number because it is at equal distance from previous prime (20127447323) and next prime (20127447341).

It can be written as a sum of positive squares in 2 ways, for example, as 16904160256 + 3223287076 = 130016^2 + 56774^2 .

It is a super-2 number, since 2×201274473322 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20127447292 and 20127447301.

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 3 ways as a sum of consecutive naturals, for example, 86756123 + ... + 86756354.

It is an arithmetic number, because the mean of its divisors is an integer number (3036468365).

Almost surely, 220127447332 is an apocalyptic number.

It is an amenable number.

20127447332 is a deficient number, since it is larger than the sum of its proper divisors (16310173048).

20127447332 is a wasteful number, since it uses less digits than its factorization.

20127447332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173512510 (or 173512508 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 35.

The spelling of 20127447332 in words is "twenty billion, one hundred twenty-seven million, four hundred forty-seven thousand, three hundred thirty-two".

Divisors: 1 2 4 29 58 116 173512477 347024954 694049908 5031861833 10063723666 20127447332