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1442130905 = 51261122871
BaseRepresentation
bin101010111110101…
…0010101111011001
310201111121211200202
41111331102233121
510423141142110
6355033511545
750510624165
oct12575225731
93644554622
101442130905
11680055326
12342b725b5
1319ca101c7
14d975bca5
15869180a5
hex55f52bd9

1442130905 has 8 divisors (see below), whose sum is σ = 1730769984. Its totient is φ = 1153562800.

The previous prime is 1442130883. The next prime is 1442130979. The reversal of 1442130905 is 5090312441.

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

It is not a de Polignac number, because 1442130905 - 28 = 1442130649 is a prime.

It is a super-2 number, since 2×14421309052 = 4159483094312238050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 51620 + ... + 74490.

It is an arithmetic number, because the mean of its divisors is an integer number (216346248).

Almost surely, 21442130905 is an apocalyptic number.

It is an amenable number.

1442130905 is a deficient number, since it is larger than the sum of its proper divisors (288639079).

1442130905 is a wasteful number, since it uses less digits than its factorization.

1442130905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35487.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1442130905 is about 37975.3986812515. The cubic root of 1442130905 is about 1129.7999763427.

The spelling of 1442130905 in words is "one billion, four hundred forty-two million, one hundred thirty thousand, nine hundred five".

Divisors: 1 5 12611 22871 63055 114355 288426181 1442130905