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1030130320 = 24537348017
BaseRepresentation
bin111101011001101…
…000101010010000
32122210101001010211
4331121220222100
54102203132240
6250115133504
734345651252
oct7531505220
92583331124
101030130320
1148953317a
12248ba4294
1313555958b
149ab51cd2
1560683bea
hex3d668a90

1030130320 has 40 divisors (see below), whose sum is σ = 2459791224. Its totient is φ = 400914432.

The previous prime is 1030130291. The next prime is 1030130327. The reversal of 1030130320 is 230310301.

It can be written as a sum of positive squares in 4 ways, for example, as 206899456 + 823230864 = 14384^2 + 28692^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×10301303202 = 2122336952366604800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1030130320.

It is not an unprimeable number, because it can be changed into a prime (1030130327) 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, 171049 + ... + 176968.

Almost surely, 21030130320 is an apocalyptic number.

1030130320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030130320 is an abundant number, since it is smaller than the sum of its proper divisors (1429660904).

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

1030130320 is a wasteful number, since it uses less digits than its factorization.

1030130320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348067 (or 348061 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 1030130320 is about 32095.6433180580. The cubic root of 1030130320 is about 1009.9442246101.

Adding to 1030130320 its reverse (230310301), we get a palindrome (1260440621).

The spelling of 1030130320 in words is "one billion, thirty million, one hundred thirty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 37 40 74 80 148 185 296 370 592 740 1480 2960 348017 696034 1392068 1740085 2784136 3480170 5568272 6960340 12876629 13920680 25753258 27841360 51506516 64383145 103013032 128766290 206026064 257532580 515065160 1030130320