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1300430440 = 23543175431
BaseRepresentation
bin100110110000010…
…1111111001101000
310100121222201012101
41031200233321220
510130402233230
6333012423144
744140322251
oct11540577150
93317881171
101300430440
11608071701
12303617ab4
13179558b8a
14c49d3b28
1579277aca
hex4d82fe68

1300430440 has 32 divisors (see below), whose sum is σ = 2932796160. Its totient is φ = 518958400.

The previous prime is 1300430437. The next prime is 1300430473. The reversal of 1300430440 is 440340031.

It is a super-2 number, since 2×13004304402 = 3382238658557187200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20476 + ... + 54955.

It is an arithmetic number, because the mean of its divisors is an integer number (91649880).

Almost surely, 21300430440 is an apocalyptic number.

1300430440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1300430440 is an abundant number, since it is smaller than the sum of its proper divisors (1632365720).

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

1300430440 is a wasteful number, since it uses less digits than its factorization.

1300430440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75873 (or 75869 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1300430440 is about 36061.4813894271. The cubic root of 1300430440 is about 1091.5133259619.

Adding to 1300430440 its reverse (440340031), we get a palindrome (1740770471).

The spelling of 1300430440 in words is "one billion, three hundred million, four hundred thirty thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 431 862 1724 2155 3448 4310 8620 17240 75431 150862 301724 377155 603448 754310 1508620 3017240 32510761 65021522 130043044 162553805 260086088 325107610 650215220 1300430440