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20234137 = 711262781
BaseRepresentation
bin100110100101…
…1111110011001
31102002000000111
41031023332121
520134443022
62001404321
7333662440
oct115137631
942060014
1020234137
1110470230
1269396a1
134265b81
142989d57
151b9a477
hex134bf99

20234137 has 8 divisors (see below), whose sum is σ = 25227072. Its totient is φ = 15766800.

The previous prime is 20234117. The next prime is 20234143. The reversal of 20234137 is 73143202.

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

It is not a de Polignac number, because 20234137 - 27 = 20234009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20234117) 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, 131314 + ... + 131467.

It is an arithmetic number, because the mean of its divisors is an integer number (3153384).

Almost surely, 220234137 is an apocalyptic number.

It is an amenable number.

20234137 is a deficient number, since it is larger than the sum of its proper divisors (4992935).

20234137 is a wasteful number, since it uses less digits than its factorization.

20234137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262799.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 20234137 is about 4498.2370991312. The cubic root of 20234137 is about 272.4968975322.

Adding to 20234137 its reverse (73143202), we get a palindrome (93377339).

The spelling of 20234137 in words is "twenty million, two hundred thirty-four thousand, one hundred thirty-seven".

Divisors: 1 7 11 77 262781 1839467 2890591 20234137