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1042613905 = 5434849367
BaseRepresentation
bin111110001001010…
…000011010010001
32200122212021101211
4332021100122101
54113402121110
6251242500121
734560033454
oct7611203221
92618767354
101042613905
1149558a293
12251204641
1313800a708
149c68149b
15617ec98a
hex3e250691

1042613905 has 8 divisors (see below), whose sum is σ = 1280233152. Its totient is φ = 814693488.

The previous prime is 1042613863. The next prime is 1042613911. The reversal of 1042613905 is 5093162401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1042613905 is a prime.

It is an unprimeable number.

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, 2424469 + ... + 2424898.

It is an arithmetic number, because the mean of its divisors is an integer number (160029144).

Almost surely, 21042613905 is an apocalyptic number.

It is an amenable number.

1042613905 is a deficient number, since it is larger than the sum of its proper divisors (237619247).

1042613905 is an equidigital number, since it uses as much as digits as its factorization.

1042613905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4849415.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1042613905 is about 32289.5324369988. The cubic root of 1042613905 is about 1014.0075085647.

The spelling of 1042613905 in words is "one billion, forty-two million, six hundred thirteen thousand, nine hundred five".

Divisors: 1 5 43 215 4849367 24246835 208522781 1042613905