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1030312100 = 225210303121
BaseRepresentation
bin111101011010010…
…101000010100100
32122210201021111102
4331122111002210
54102224441400
6250123055232
734350336236
oct7532250244
92583637442
101030312100
11489647804
12249071518
131355c123c
149ab9c256
15606bc9d5
hex3d6950a4

1030312100 has 18 divisors (see below), whose sum is σ = 2235777474. Its totient is φ = 412124800.

The previous prime is 1030312099. The next prime is 1030312111. The reversal of 1030312100 is 12130301.

It can be written as a sum of positive squares in 3 ways, for example, as 16908544 + 1013403556 = 4112^2 + 31834^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5151461 + ... + 5151660.

Almost surely, 21030312100 is an apocalyptic number.

1030312100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030312100 is an abundant number, since it is smaller than the sum of its proper divisors (1205465374).

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

1030312100 is a wasteful number, since it uses less digits than its factorization.

1030312100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10303135 (or 10303128 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1030312100 is about 32098.4750416589. The cubic root of 1030312100 is about 1010.0036270824.

Adding to 1030312100 its reverse (12130301), we get a palindrome (1042442401).

The spelling of 1030312100 in words is "one billion, thirty million, three hundred twelve thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 10303121 20606242 41212484 51515605 103031210 206062420 257578025 515156050 1030312100