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1830339447 = 31945731357
BaseRepresentation
bin110110100011000…
…1100001101110111
311201120002212200220
41231012030031313
512222031330242
6501342305423
763233425416
oct15506141567
94646085626
101830339447
1185a1a7132
12430b88273
132322836c1
1413513347d
15aaa4cbec
hex6d18c377

1830339447 has 8 divisors (see below), whose sum is σ = 2440655856. Its totient is φ = 1220124672.

The previous prime is 1830339443. The next prime is 1830339449. The reversal of 1830339447 is 7449330381.

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

It is not a de Polignac number, because 1830339447 - 22 = 1830339443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1830339399 and 1830339408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1830339443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42693 + ... + 74049.

It is an arithmetic number, because the mean of its divisors is an integer number (305081982).

Almost surely, 21830339447 is an apocalyptic number.

1830339447 is a deficient number, since it is larger than the sum of its proper divisors (610316409).

1830339447 is a wasteful number, since it uses less digits than its factorization.

1830339447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50817.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 1830339447 is about 42782.4665838705. The cubic root of 1830339447 is about 1223.2368241414.

The spelling of 1830339447 in words is "one billion, eight hundred thirty million, three hundred thirty-nine thousand, four hundred forty-seven".

Divisors: 1 3 19457 31357 58371 94071 610113149 1830339447