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19474101 = 34240421
BaseRepresentation
bin100101001001…
…0011010110101
31100122101110000
41022102122311
514441132401
61533221513
7324345543
oct112223265
940571400
1019474101
11aaa11a9
126631899
13405ac4a
14282cd93
151a9a186
hex12926b5

19474101 has 10 divisors (see below), whose sum is σ = 29091062. Its totient is φ = 12982680.

The previous prime is 19474097. The next prime is 19474111. The reversal of 19474101 is 10147491.

It can be written as a sum of positive squares in only one way, i.e., 19131876 + 342225 = 4374^2 + 585^2 .

It is not a de Polignac number, because 19474101 - 22 = 19474097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19474111) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 120130 + ... + 120291.

Almost surely, 219474101 is an apocalyptic number.

It is an amenable number.

19474101 is a deficient number, since it is larger than the sum of its proper divisors (9616961).

19474101 is an equidigital number, since it uses as much as digits as its factorization.

19474101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240433 (or 240424 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 19474101 is about 4412.9469745285. The cubic root of 19474101 is about 269.0414155679.

The spelling of 19474101 in words is "nineteen million, four hundred seventy-four thousand, one hundred one".

Divisors: 1 3 9 27 81 240421 721263 2163789 6491367 19474101