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30005037238 = 2111363865329
BaseRepresentation
bin11011111100011100…
…001000100010110110
32212110002202211011111
4123330130020202312
5442422242142423
621441212025234
72111360415451
oct337434104266
985402684144
1030005037238
11117a8074640
12599476221a
132aa2439b07
141648d9a498
15ba92c160d
hex6fc7088b6

30005037238 has 8 divisors (see below), whose sum is σ = 49099151880. Its totient is φ = 13638653280.

The previous prime is 30005037221. The next prime is 30005037241. The reversal of 30005037238 is 83273050003.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 681932643 + ... + 681932686.

It is an arithmetic number, because the mean of its divisors is an integer number (6137393985).

Almost surely, 230005037238 is an apocalyptic number.

30005037238 is a deficient number, since it is larger than the sum of its proper divisors (19094114642).

30005037238 is a wasteful number, since it uses less digits than its factorization.

30005037238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363865342.

The product of its (nonzero) digits is 15120, while the sum is 31.

The spelling of 30005037238 in words is "thirty billion, five million, thirty-seven thousand, two hundred thirty-eight".

Divisors: 1 2 11 22 1363865329 2727730658 15002518619 30005037238