Search a number
-
+
1030212020 = 225157328093
BaseRepresentation
bin111101011001111…
…100100110110100
32122210112012012202
4331121330212310
54102213241040
6250121004032
734346441405
oct7531744664
92583465182
101030212020
114895895a2
12249023618
13135587816
149ab739ac
156069d015
hex3d67c9b4

1030212020 has 24 divisors (see below), whose sum is σ = 2177231784. Its totient is φ = 409458816.

The previous prime is 1030211993. The next prime is 1030212023. The reversal of 1030212020 is 202120301.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8514724 + 1021697296 = 2918^2 + 31964^2 .

It is a super-2 number, since 2×10302120202 = 2122673612304960800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1030211992 and 1030212010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030212023) 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, 160907 + ... + 167186.

It is an arithmetic number, because the mean of its divisors is an integer number (90717991).

Almost surely, 21030212020 is an apocalyptic number.

1030212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030212020 is an abundant number, since it is smaller than the sum of its proper divisors (1147019764).

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

1030212020 is a wasteful number, since it uses less digits than its factorization.

1030212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328259 (or 328257 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1030212020 is about 32096.9160512346. The cubic root of 1030212020 is about 1009.9709235821.

Adding to 1030212020 its reverse (202120301), we get a palindrome (1232332321).

It can be divided in two parts, 10302 and 12020, that added together give a palindrome (22322).

The spelling of 1030212020 in words is "one billion, thirty million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 157 314 628 785 1570 3140 328093 656186 1312372 1640465 3280930 6561860 51510601 103021202 206042404 257553005 515106010 1030212020