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1030020 = 223517167
BaseRepresentation
bin11111011011110000100
31221022220220
43323132010
5230430040
634024340
711516655
oct3733604
91838826
101030020
11643962
124180b0
132a0aa4
141cb52c
151552d0
hexfb784

1030020 has 24 divisors (see below), whose sum is σ = 2884224. Its totient is φ = 274656.

The previous prime is 1030019. The next prime is 1030021. The reversal of 1030020 is 200301.

It is an interprime number because it is at equal distance from previous prime (1030019) and next prime (1030021).

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 1029990 and 1030008.

It is not an unprimeable number, because it can be changed into a prime (1030021) 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, 8524 + ... + 8643.

It is an arithmetic number, because the mean of its divisors is an integer number (120176).

21030020 is an apocalyptic number.

1030020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030020 is an abundant number, since it is smaller than the sum of its proper divisors (1854204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1030020 is a wasteful number, since it uses less digits than its factorization.

1030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17179 (or 17177 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 6.

The square root of 1030020 is about 1014.8990097542. The cubic root of 1030020 is about 100.9908170588.

Adding to 1030020 its reverse (200301), we get a palindrome (1230321).

The spelling of 1030020 in words is "one million, thirty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 17167 34334 51501 68668 85835 103002 171670 206004 257505 343340 515010 1030020