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14387871838 = 2312714431933
BaseRepresentation
bin11010110011001010…
…11000000001011110
31101010201022121201011
431121211120001132
5213431243344323
610335410005434
71016354615134
oct153145300136
941121277634
1014387871838
11611364007a
12295657687a
131483a95042
149a6c01754
155931ed20d
hex35995805e

14387871838 has 32 divisors (see below), whose sum is σ = 22422269952. Its totient is φ = 6916946400.

The previous prime is 14387871821. The next prime is 14387871863. The reversal of 14387871838 is 83817878341.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7442320 + ... + 7444252.

It is an arithmetic number, because the mean of its divisors is an integer number (700695936).

Almost surely, 214387871838 is an apocalyptic number.

14387871838 is a deficient number, since it is larger than the sum of its proper divisors (8034398114).

14387871838 is a wasteful number, since it uses less digits than its factorization.

14387871838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680.

The product of its digits is 7225344, while the sum is 58.

The spelling of 14387871838 in words is "fourteen billion, three hundred eighty-seven million, eight hundred seventy-one thousand, eight hundred thirty-eight".

Divisors: 1 2 31 62 271 443 542 886 1933 3866 8401 13733 16802 27466 59923 119846 120053 240106 523843 856319 1047686 1712638 3721643 7443286 16239133 26545889 32478266 53091778 232062449 464124898 7193935919 14387871838