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20103748472 = 2310395325601
BaseRepresentation
bin10010101110010001…
…101101101101111000
31220220001202020101202
4102232101231231320
5312133024422342
613122513033332
71311122020403
oct225621555570
956801666352
1020103748472
118587050865
123a90855848
131b85031672
14d89db0d3a
157c9e11332
hex4ae46db78

20103748472 has 32 divisors (see below), whose sum is σ = 38101920480. Its totient is φ = 9943449600.

The previous prime is 20103748459. The next prime is 20103748481. The reversal of 20103748472 is 27484730102.

It is a congruent number.

It is an unprimeable number.

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, 772472 + ... + 798072.

It is an arithmetic number, because the mean of its divisors is an integer number (1190685015).

Almost surely, 220103748472 is an apocalyptic number.

It is an amenable number.

20103748472 is a deficient number, since it is larger than the sum of its proper divisors (17998172008).

20103748472 is a wasteful number, since it uses less digits than its factorization.

20103748472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26663 (or 26659 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The spelling of 20103748472 in words is "twenty billion, one hundred three million, seven hundred forty-eight thousand, four hundred seventy-two".

Divisors: 1 2 4 8 103 206 412 824 953 1906 3812 7624 25601 51202 98159 102404 196318 204808 392636 785272 2636903 5273806 10547612 21095224 24397753 48795506 97591012 195182024 2512968559 5025937118 10051874236 20103748472