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1052129 = 1380933
BaseRepresentation
bin100000000110111100001
31222110020202
410000313201
5232132004
634314545
711641301
oct4006741
91873222
101052129
11659531
12428a55
132aab80
141d5601
1515bb1e
hex100de1

1052129 has 4 divisors (see below), whose sum is σ = 1133076. Its totient is φ = 971184.

The previous prime is 1052119. The next prime is 1052137. The reversal of 1052129 is 9212501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9212501 = 27413361.

It can be written as a sum of positive squares in 2 ways, for example, as 277729 + 774400 = 527^2 + 880^2 .

It is a cyclic number.

It is not a de Polignac number, because 1052129 - 216 = 986593 is a prime.

It is a super-2 number, since 2×10521292 = 2213950865282, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

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 1052129.

It is not an unprimeable number, because it can be changed into a prime (1052119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40454 + ... + 40479.

It is an arithmetic number, because the mean of its divisors is an integer number (283269).

21052129 is an apocalyptic number.

It is an amenable number.

1052129 is a deficient number, since it is larger than the sum of its proper divisors (80947).

1052129 is an equidigital number, since it uses as much as digits as its factorization.

1052129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80946.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1052129 is about 1025.7333961610. The cubic root of 1052129 is about 101.7082847914.

The spelling of 1052129 in words is "one million, fifty-two thousand, one hundred twenty-nine".

Divisors: 1 13 80933 1052129