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1442204031 = 33071565911
BaseRepresentation
bin101010111110110…
…0100100101111111
310201111202120000010
41111331210211333
510423201012111
6355035234303
750511350322
oct12575444577
93644676003
101442204031
116800a5264
12342ba8993
1319ca37588
14d977a7b9
158692eaa6
hex55f6497f

1442204031 has 8 divisors (see below), whose sum is σ = 1929203584. Its totient is φ = 958336920.

The previous prime is 1442204003. The next prime is 1442204033. The reversal of 1442204031 is 1304022441.

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

It is a de Polignac number, because none of the positive numbers 2k-1442204031 is a prime.

It is a super-2 number, since 2×14422040312 = 4159904934065297922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1442203989 and 1442204007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442204033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782035 + ... + 783876.

It is an arithmetic number, because the mean of its divisors is an integer number (241150448).

Almost surely, 21442204031 is an apocalyptic number.

1442204031 is a deficient number, since it is larger than the sum of its proper divisors (486999553).

1442204031 is a wasteful number, since it uses less digits than its factorization.

1442204031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566221.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1442204031 is about 37976.3614765817. The cubic root of 1442204031 is about 1129.8190722413.

Adding to 1442204031 its reverse (1304022441), we get a palindrome (2746226472).

The spelling of 1442204031 in words is "one billion, four hundred forty-two million, two hundred four thousand, thirty-one".

Divisors: 1 3 307 921 1565911 4697733 480734677 1442204031