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1020029 = 7389157
BaseRepresentation
bin11111001000001111101
31220211012212
43321001331
5230120104
633510205
711445563
oct3710175
91824185
101020029
116373aa
12412365
1329938a
141c7a33
1515236e
hexf907d

1020029 has 8 divisors (see below), whose sum is σ = 1052280. Its totient is φ = 988416.

The previous prime is 1020023. The next prime is 1020037. The reversal of 1020029 is 9200201.

It can be written as a sum of positive squares in 4 ways, for example, as 24025 + 996004 = 155^2 + 998^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1020029 - 24 = 1020013 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1019995 and 1020022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020023) 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, 6419 + ... + 6575.

It is an arithmetic number, because the mean of its divisors is an integer number (131535).

21020029 is an apocalyptic number.

It is an amenable number.

1020029 is a deficient number, since it is larger than the sum of its proper divisors (32251).

1020029 is an equidigital number, since it uses as much as digits as its factorization.

1020029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1020029 is about 1009.9648508735. The cubic root of 1020029 is about 100.6632249358.

The spelling of 1020029 in words is "one million, twenty thousand, twenty-nine".

Divisors: 1 73 89 157 6497 11461 13973 1020029