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1442623471 = 31179499521
BaseRepresentation
bin101010111111100…
…1010111111101111
310201112112212100221
41111333022333233
510423302422341
6355052232211
750515045222
oct12577127757
93645485327
101442623471
11680361403
1234316b667
1319cb53473
14d98495b9
15869b3ed1
hex55fcafef

1442623471 has 16 divisors (see below), whose sum is σ = 1503360000. Its totient is φ = 1382846400.

The previous prime is 1442623453. The next prime is 1442623477. The reversal of 1442623471 is 1743262441.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1442623471 is a prime.

It is a super-3 number, since 3×14426234713 (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442623477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2768691 + ... + 2769211.

It is an arithmetic number, because the mean of its divisors is an integer number (93960000).

Almost surely, 21442623471 is an apocalyptic number.

1442623471 is a deficient number, since it is larger than the sum of its proper divisors (60736529).

1442623471 is a wasteful number, since it uses less digits than its factorization.

1442623471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230.

The product of its digits is 32256, while the sum is 34.

The square root of 1442623471 is about 37981.8834577750. The cubic root of 1442623471 is about 1129.9285910444.

The spelling of 1442623471 in words is "one billion, four hundred forty-two million, six hundred twenty-three thousand, four hundred seventy-one".

Divisors: 1 31 179 499 521 5549 15469 16151 89321 93259 259979 2768951 2891029 8059349 46536241 1442623471