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13753987 = 133134129
BaseRepresentation
bin110100011101…
…111010000011
3221212202220221
4310131322003
512010111422
61210443511
7224623042
oct64357203
927782827
1013753987
117844635
124733597
132b07470
141b80559
15131a3c7
hexd1de83

13753987 has 8 divisors (see below), whose sum is σ = 15290240. Its totient is φ = 12286080.

The previous prime is 13753951. The next prime is 13754011. The reversal of 13753987 is 78935731.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13753987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13753687) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16662 + ... + 17467.

It is an arithmetic number, because the mean of its divisors is an integer number (1911280).

Almost surely, 213753987 is an apocalyptic number.

13753987 is a deficient number, since it is larger than the sum of its proper divisors (1536253).

13753987 is a wasteful number, since it uses less digits than its factorization.

13753987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34173.

The product of its digits is 158760, while the sum is 43.

The square root of 13753987 is about 3708.6368115522. The cubic root of 13753987 is about 239.5941462408.

The spelling of 13753987 in words is "thirteen million, seven hundred fifty-three thousand, nine hundred eighty-seven".

Divisors: 1 13 31 403 34129 443677 1057999 13753987