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2030403440 = 245131952311
BaseRepresentation
bin111100100000101…
…0111111101110000
312020111120011220102
41321001113331300
513124240402230
6533250331532
7101213100362
oct17101277560
95214504812
102030403440
1195212317a
12487b89ba8
13264860b70
14153930d32
15bd3bb045
hex79057f70

2030403440 has 40 divisors (see below), whose sum is σ = 5083820448. Its totient is φ = 749687040.

The previous prime is 2030403433. The next prime is 2030403451. The reversal of 2030403440 is 443040302.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 975116 + ... + 977195.

Almost surely, 22030403440 is an apocalyptic number.

2030403440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2030403440 is an abundant number, since it is smaller than the sum of its proper divisors (3053417008).

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

2030403440 is a wasteful number, since it uses less digits than its factorization.

2030403440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952337 (or 1952331 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 2030403440 is about 45059.9982245894. The cubic root of 2030403440 is about 1266.2732918200.

Adding to 2030403440 its reverse (443040302), we get a palindrome (2473443742).

The spelling of 2030403440 in words is "two billion, thirty million, four hundred three thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 520 1040 1952311 3904622 7809244 9761555 15618488 19523110 25380043 31236976 39046220 50760086 78092440 101520172 126900215 156184880 203040344 253800430 406080688 507600860 1015201720 2030403440