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1384693285 = 51151240607
BaseRepresentation
bin101001010001000…
…1011111000100101
310120111112201002111
41102202023320211
510313440141120
6345222441021
746212461443
oct12242137045
93514481074
101384693285
11650694618
12327893171
13190b4c651
14d1c89b93
158186e75a
hex5288be25

1384693285 has 8 divisors (see below), whose sum is σ = 1663082496. Its totient is φ = 1106787600.

The previous prime is 1384693283. The next prime is 1384693309. The reversal of 1384693285 is 5823964831.

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

It is not a de Polignac number, because 1384693285 - 21 = 1384693283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1384693283) 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, 114549 + ... + 126058.

It is an arithmetic number, because the mean of its divisors is an integer number (207885312).

Almost surely, 21384693285 is an apocalyptic number.

It is an amenable number.

1384693285 is a deficient number, since it is larger than the sum of its proper divisors (278389211).

1384693285 is a wasteful number, since it uses less digits than its factorization.

1384693285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241763.

The product of its digits is 1244160, while the sum is 49.

The square root of 1384693285 is about 37211.4671170057. The cubic root of 1384693285 is about 1114.5969800998.

The spelling of 1384693285 in words is "one billion, three hundred eighty-four million, six hundred ninety-three thousand, two hundred eighty-five".

Divisors: 1 5 1151 5755 240607 1203035 276938657 1384693285