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200030004421 = 1315386923417
BaseRepresentation
bin1011101001001010110…
…1111010010011000101
3201010022102202001211021
42322102231322103011
511234130140120141
6231520441111141
720310633661312
oct2722255722305
9633272661737
10200030004421
11779177a4a45
12329257884b1
1315b2a5c6180
149978091d09
15530adee6d1
hex2e92b7a4c5

200030004421 has 4 divisors (see below), whose sum is σ = 215416927852. Its totient is φ = 184643080992.

The previous prime is 200030004413. The next prime is 200030004439. The reversal of 200030004421 is 124400030002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 111363031521 + 88666972900 = 333711^2 + 297770^2 .

It is a cyclic number.

It is not a de Polignac number, because 200030004421 - 23 = 200030004413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200030004395 and 200030004404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200030904421) 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, 7693461696 + ... + 7693461721.

It is an arithmetic number, because the mean of its divisors is an integer number (53854231963).

Almost surely, 2200030004421 is an apocalyptic number.

It is an amenable number.

200030004421 is a deficient number, since it is larger than the sum of its proper divisors (15386923431).

200030004421 is a wasteful number, since it uses less digits than its factorization.

200030004421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15386923430.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 200030004421 its reverse (124400030002), we get a palindrome (324430034423).

The spelling of 200030004421 in words is "two hundred billion, thirty million, four thousand, four hundred twenty-one".

Divisors: 1 13 15386923417 200030004421