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10128671 = 723531187
BaseRepresentation
bin100110101000…
…110100011111
3201001120220222
4212220310133
510043104141
61001031555
7152043440
oct46506437
921046828
1010128671
115798903
1234855bb
1321382c7
1414b92c7
15d5114b
hex9a8d1f

10128671 has 16 divisors (see below), whose sum is σ = 12317184. Its totient is φ = 8140704.

The previous prime is 10128659. The next prime is 10128673. The reversal of 10128671 is 17682101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10128671 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10128671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10128673) 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 15 ways as a sum of consecutive naturals, for example, 7940 + ... + 9126.

It is an arithmetic number, because the mean of its divisors is an integer number (769824).

Almost surely, 210128671 is an apocalyptic number.

10128671 is a deficient number, since it is larger than the sum of its proper divisors (2188513).

10128671 is a wasteful number, since it uses less digits than its factorization.

10128671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270.

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 10128671 is about 3182.5573050615. The cubic root of 10128671 is about 216.3635780569.

The spelling of 10128671 in words is "ten million, one hundred twenty-eight thousand, six hundred seventy-one".

Divisors: 1 7 23 53 161 371 1187 1219 8309 8533 27301 62911 191107 440377 1446953 10128671