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2134869 = 31164693
BaseRepresentation
bin1000001001001101010101
311000110111020
420021031111
51021303434
6113431353
724101052
oct10111525
94013436
102134869
111228a60
1286b559
13599949
143d8029
152c2849
hex209355

2134869 has 8 divisors (see below), whose sum is σ = 3105312. Its totient is φ = 1293840.

The previous prime is 2134861. The next prime is 2134879. The reversal of 2134869 is 9684312.

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

It is not a de Polignac number, because 2134869 - 23 = 2134861 is a prime.

It is a super-2 number, since 2×21348692 = 9115331294322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 64693 = 2134869 / (2 + 1 + 3 + 4 + 8 + 6 + 9).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32314 + ... + 32379.

It is an arithmetic number, because the mean of its divisors is an integer number (388164).

22134869 is an apocalyptic number.

It is an amenable number.

2134869 is a deficient number, since it is larger than the sum of its proper divisors (970443).

2134869 is a wasteful number, since it uses less digits than its factorization.

2134869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64707.

The product of its digits is 10368, while the sum is 33.

The square root of 2134869 is about 1461.1190916554. The cubic root of 2134869 is about 128.7627994942.

It can be divided in two parts, 2134 and 869, that added together give a palindrome (3003).

The spelling of 2134869 in words is "two million, one hundred thirty-four thousand, eight hundred sixty-nine".

Divisors: 1 3 11 33 64693 194079 711623 2134869