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1385307430 = 251310656211
BaseRepresentation
bin101001010010010…
…0001110100100110
310120112200220112121
41102210201310212
510314114314210
6345243540154
746220630113
oct12244416446
93515626477
101385307430
11650a73a81
12327b2a65a
13191006050
14d1da990a
15819416da
hex52921d26

1385307430 has 16 divisors (see below), whose sum is σ = 2685365424. Its totient is φ = 511498080.

The previous prime is 1385307419. The next prime is 1385307431. The reversal of 1385307430 is 347035831.

It is a super-2 number, since 2×13853074302 = 3838153351226409800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385307431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5327976 + ... + 5328235.

It is an arithmetic number, because the mean of its divisors is an integer number (167835339).

Almost surely, 21385307430 is an apocalyptic number.

1385307430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1385307430 is a deficient number, since it is larger than the sum of its proper divisors (1300057994).

1385307430 is a wasteful number, since it uses less digits than its factorization.

1385307430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10656231.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 1385307430 is about 37219.7182955487. The cubic root of 1385307430 is about 1114.7617393269.

The spelling of 1385307430 in words is "one billion, three hundred eighty-five million, three hundred seven thousand, four hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 10656211 21312422 53281055 106562110 138530743 277061486 692653715 1385307430