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1378460005 = 513612231559
BaseRepresentation
bin101001000101001…
…1010000101100101
310120001211000122021
41102022122011211
510310341210010
6344441103141
746105500556
oct12212320545
93501730567
101378460005
1164811744a
12325787ab1
1318c779410
14d110632d
158103c8da
hex5229a165

1378460005 has 32 divisors (see below), whose sum is σ = 1819883520. Its totient is φ = 996122880.

The previous prime is 1378459967. The next prime is 1378460029. The reversal of 1378460005 is 5000648731.

It is not a de Polignac number, because 1378460005 - 213 = 1378451813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 883416 + ... + 884974.

It is an arithmetic number, because the mean of its divisors is an integer number (56871360).

Almost surely, 21378460005 is an apocalyptic number.

It is an amenable number.

1378460005 is a deficient number, since it is larger than the sum of its proper divisors (441423515).

1378460005 is a wasteful number, since it uses less digits than its factorization.

1378460005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 1378460005 is about 37127.6178201619. The cubic root of 1378460005 is about 1112.9219891361.

The spelling of 1378460005 in words is "one billion, three hundred seventy-eight million, four hundred sixty thousand, five".

Divisors: 1 5 13 61 65 223 305 793 1115 1559 2899 3965 7795 13603 14495 20267 68015 95099 101335 176839 347657 475495 884195 1236287 1738285 4519541 6181435 21207077 22597705 106035385 275692001 1378460005