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10214887 = 67152461
BaseRepresentation
bin100110111101…
…110111100111
3201012222012011
4212331313213
510103334022
61002535051
7152553004
oct46756747
921188164
1010214887
115847661
123507487
132168617
1414dc8ab
15d6b977
hex9bdde7

10214887 has 4 divisors (see below), whose sum is σ = 10367416. Its totient is φ = 10062360.

The previous prime is 10214851. The next prime is 10214917. The reversal of 10214887 is 78841201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78841201 = 167472103.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10214887 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 (10214287) 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 3 ways as a sum of consecutive naturals, for example, 76164 + ... + 76297.

It is an arithmetic number, because the mean of its divisors is an integer number (2591854).

Almost surely, 210214887 is an apocalyptic number.

10214887 is a deficient number, since it is larger than the sum of its proper divisors (152529).

10214887 is an equidigital number, since it uses as much as digits as its factorization.

10214887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152528.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 10214887 is about 3196.0736850079. The cubic root of 10214887 is about 216.9757453407.

The spelling of 10214887 in words is "ten million, two hundred fourteen thousand, eight hundred eighty-seven".

Divisors: 1 67 152461 10214887