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20000230197 = 334799119387
BaseRepresentation
bin10010101000000110…
…110100101100110101
31220121211221222000120
4102220012310230311
5311430024331242
613104334202153
71305424103013
oct225006645465
956554858016
1020000230197
118533676a72
123a62053359
131b6975864c
14d7a3458b3
157c0cb41ec
hex4a81b4b35

20000230197 has 16 divisors (see below), whose sum is σ = 26772191232. Its totient is φ = 13280960880.

The previous prime is 20000230183. The next prime is 20000230199. The reversal of 20000230197 is 79103200002.

It is not a de Polignac number, because 20000230197 - 223 = 19991841589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000230199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1021938 + ... + 1041324.

It is an arithmetic number, because the mean of its divisors is an integer number (1673261952).

Almost surely, 220000230197 is an apocalyptic number.

It is an amenable number.

20000230197 is a deficient number, since it is larger than the sum of its proper divisors (6771961035).

20000230197 is a wasteful number, since it uses less digits than its factorization.

20000230197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20728.

The product of its (nonzero) digits is 756, while the sum is 24.

Adding to 20000230197 its reverse (79103200002), we get a palindrome (99103430199).

The spelling of 20000230197 in words is "twenty billion, two hundred thirty thousand, one hundred ninety-seven".

Divisors: 1 3 347 991 1041 2973 19387 58161 343877 1031631 6727289 19212517 20181867 57637551 6666743399 20000230197