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20376901 = 23985259
BaseRepresentation
bin100110110111…
…0110101000101
31102100020212001
41031232311011
520204030101
62004425301
7335125606
oct115566505
942306761
1020376901
1110558516
1269a8231
1342b5b4c
1429c5dad
151bc7901
hex136ed45

20376901 has 4 divisors (see below), whose sum is σ = 20462400. Its totient is φ = 20291404.

The previous prime is 20376893. The next prime is 20376907. The reversal of 20376901 is 10967302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10967302 = 25483651.

It is a cyclic number.

It is not a de Polignac number, because 20376901 - 23 = 20376893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20376901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20376907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42391 + ... + 42868.

It is an arithmetic number, because the mean of its divisors is an integer number (5115600).

Almost surely, 220376901 is an apocalyptic number.

It is an amenable number.

20376901 is a deficient number, since it is larger than the sum of its proper divisors (85499).

20376901 is an equidigital number, since it uses as much as digits as its factorization.

20376901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85498.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 20376901 is about 4514.0780897100. The cubic root of 20376901 is about 273.1362726297.

The spelling of 20376901 in words is "twenty million, three hundred seventy-six thousand, nine hundred one".

Divisors: 1 239 85259 20376901