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1020001307 = 1378461639
BaseRepresentation
bin111100110010111…
…111110000011011
32122002022102202012
4330302333300123
54042110020212
6245114100135
734163603513
oct7462776033
92562272665
101020001307
11483845096
1224571a64b
13133421090
1499676843
155e832922
hex3ccbfc1b

1020001307 has 4 divisors (see below), whose sum is σ = 1098462960. Its totient is φ = 941539656.

The previous prime is 1020001303. The next prime is 1020001337. The reversal of 1020001307 is 7031000201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7031000201 = 10964504589.

It is a cyclic number.

It is not a de Polignac number, because 1020001307 - 22 = 1020001303 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020001291 and 1020001300.

It is not an unprimeable number, because it can be changed into a prime (1020001303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39230807 + ... + 39230832.

It is an arithmetic number, because the mean of its divisors is an integer number (274615740).

Almost surely, 21020001307 is an apocalyptic number.

1020001307 is a deficient number, since it is larger than the sum of its proper divisors (78461653).

1020001307 is an equidigital number, since it uses as much as digits as its factorization.

1020001307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78461652.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 1020001307 is about 31937.4593072148. The cubic root of 1020001307 is about 1006.6231395128.

Adding to 1020001307 its reverse (7031000201), we get a palindrome (8051001508).

The spelling of 1020001307 in words is "one billion, twenty million, one thousand, three hundred seven".

Divisors: 1 13 78461639 1020001307