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1442205501 = 311239831933
BaseRepresentation
bin101010111110110…
…0100111100111101
310201111202122000120
41111331210330331
510423201034001
6355035245153
750511354522
oct12575447475
93644678016
101442205501
116800a6380
12342ba97b9
1319ca38149
14d977b149
1586930236
hex55f64f3d

1442205501 has 32 divisors (see below), whose sum is σ = 2192320512. Its totient is φ = 834778560.

The previous prime is 1442205437. The next prime is 1442205517. The reversal of 1442205501 is 1055022441.

It is not a de Polignac number, because 1442205501 - 26 = 1442205437 is a prime.

It is a super-2 number, since 2×14422055012 = 4159913414229322002, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442205521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 745131 + ... + 747063.

It is an arithmetic number, because the mean of its divisors is an integer number (68510016).

Almost surely, 21442205501 is an apocalyptic number.

1442205501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1442205501 is a deficient number, since it is larger than the sum of its proper divisors (750115011).

1442205501 is a wasteful number, since it uses less digits than its factorization.

1442205501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1442205501 is about 37976.3808307216. The cubic root of 1442205501 is about 1129.8194561060.

Adding to 1442205501 its reverse (1055022441), we get a palindrome (2497227942).

The spelling of 1442205501 in words is "one billion, four hundred forty-two million, two hundred five thousand, five hundred one".

Divisors: 1 3 11 23 33 69 253 759 983 1933 2949 5799 10813 21263 22609 32439 44459 63789 67827 133377 248699 489049 746097 1467147 1900139 5700417 20901529 43703197 62704587 131109591 480735167 1442205501