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1030130440 = 235231119707
BaseRepresentation
bin111101011001101…
…000101100001000
32122210101001022021
4331121220230020
54102203133230
6250115134224
734345651513
oct7531505410
92583331267
101030130440
11489533279
12248ba4374
13135559651
149ab51d7a
1560683c7a
hex3d668b08

1030130440 has 32 divisors (see below), whose sum is σ = 2418569280. Its totient is φ = 394136512.

The previous prime is 1030130407. The next prime is 1030130441. The reversal of 1030130440 is 440310301.

It is a super-2 number, since 2×10301304402 = 2122337446829187200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1030130441) 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, 558934 + ... + 560773.

It is an arithmetic number, because the mean of its divisors is an integer number (75580290).

Almost surely, 21030130440 is an apocalyptic number.

1030130440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030130440 is an abundant number, since it is smaller than the sum of its proper divisors (1388438840).

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

1030130440 is a wasteful number, since it uses less digits than its factorization.

1030130440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119741 (or 1119737 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1030130440 is about 32095.6451874705. The cubic root of 1030130440 is about 1009.9442638262.

Adding to 1030130440 its reverse (440310301), we get a palindrome (1470440741).

The spelling of 1030130440 in words is "one billion, thirty million, one hundred thirty thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 23 40 46 92 115 184 230 460 920 1119707 2239414 4478828 5598535 8957656 11197070 22394140 25753261 44788280 51506522 103013044 128766305 206026088 257532610 515065220 1030130440