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20080181452 = 2243701166541
BaseRepresentation
bin10010101100110111…
…110100000011001100
31220211102101220112011
4102230313310003030
5312111011301302
613120311551004
71310414504032
oct225467640314
956742356464
1020080181452
118574814591
123a8498b464
131b8019c796
14d86bd8552
157c7d085d7
hex4acdf40cc

20080181452 has 24 divisors (see below), whose sum is σ = 36009045072. Its totient is φ = 9792552000.

The previous prime is 20080181419. The next prime is 20080181477. The reversal of 20080181452 is 25418108002.

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 7 ways as a sum of consecutive naturals, for example, 37302 + ... + 203842.

It is an arithmetic number, because the mean of its divisors is an integer number (1500376878).

Almost surely, 220080181452 is an apocalyptic number.

It is an amenable number.

20080181452 is a deficient number, since it is larger than the sum of its proper divisors (15928863620).

20080181452 is a wasteful number, since it uses less digits than its factorization.

20080181452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167289 (or 167287 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 31.

Adding to 20080181452 its reverse (25418108002), we get a palindrome (45498289454).

The spelling of 20080181452 in words is "twenty billion, eighty million, one hundred eighty-one thousand, four hundred fifty-two".

Divisors: 1 2 4 43 86 172 701 1402 2804 30143 60286 120572 166541 333082 666164 7161263 14322526 28645052 116745241 233490482 466980964 5020045363 10040090726 20080181452