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20488101 = 323296929
BaseRepresentation
bin100111000100…
…1111110100101
31102112220101120
41032021332211
520221104401
62011044153
7336101034
oct116117645
942486346
1020488101
1110624017
126a40659
13432464a
142a1471b
151bea836
hex1389fa5

20488101 has 8 divisors (see below), whose sum is σ = 28505280. Its totient is φ = 13064832.

The previous prime is 20488093. The next prime is 20488103. The reversal of 20488101 is 10188402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20488101 - 23 = 20488093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20488103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148396 + ... + 148533.

It is an arithmetic number, because the mean of its divisors is an integer number (3563160).

Almost surely, 220488101 is an apocalyptic number.

It is an amenable number.

20488101 is a deficient number, since it is larger than the sum of its proper divisors (8017179).

20488101 is a wasteful number, since it uses less digits than its factorization.

20488101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296955.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 20488101 is about 4526.3783536068. The cubic root of 20488101 is about 273.6322209710.

The spelling of 20488101 in words is "twenty million, four hundred eighty-eight thousand, one hundred one".

Divisors: 1 3 23 69 296929 890787 6829367 20488101