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19420601 = 31897039
BaseRepresentation
bin100101000010…
…1010110111001
31100112200001112
41022011112321
514432424401
61532130105
7324033554
oct112052671
940480045
1019420601
11aa64a92
126606935
13403c7a5
14281769b
151a893bb
hex12855b9

19420601 has 8 divisors (see below), whose sum is σ = 20275200. Its totient is φ = 18580320.

The previous prime is 19420591. The next prime is 19420637. The reversal of 19420601 is 10602491.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 19420601 - 26 = 19420537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19420201) 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, 761 + ... + 6278.

It is an arithmetic number, because the mean of its divisors is an integer number (2534400).

Almost surely, 219420601 is an apocalyptic number.

It is an amenable number.

19420601 is a deficient number, since it is larger than the sum of its proper divisors (854599).

19420601 is an equidigital number, since it uses as much as digits as its factorization.

19420601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7159.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 19420601 is about 4406.8810966487. The cubic root of 19420601 is about 268.7948159623.

The spelling of 19420601 in words is "nineteen million, four hundred twenty thousand, six hundred one".

Divisors: 1 31 89 2759 7039 218209 626471 19420601