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1005300331 = 71381103993
BaseRepresentation
bin111011111010111…
…010101001101011
32121001122112210121
4323322322221223
54024324102311
6243431024111
733624624520
oct7372725153
92531575717
101005300331
11476514022
1224080b037
13130374889
149772b147
155d3cbb71
hex3bebaa6b

1005300331 has 8 divisors (see below), whose sum is σ = 1149757664. Its totient is φ = 861053760.

The previous prime is 1005300281. The next prime is 1005300349. The reversal of 1005300331 is 1330035001.

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

It is not a de Polignac number, because 1005300331 - 215 = 1005267563 is a prime.

It is a super-2 number, since 2×10053003312 = 2021257511017419122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1005300391) 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, 42330 + ... + 61663.

It is an arithmetic number, because the mean of its divisors is an integer number (143719708).

Almost surely, 21005300331 is an apocalyptic number.

1005300331 is a deficient number, since it is larger than the sum of its proper divisors (144457333).

1005300331 is a wasteful number, since it uses less digits than its factorization.

1005300331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105381.

The product of its (nonzero) digits is 135, while the sum is 16.

The square root of 1005300331 is about 31706.4714372319. The cubic root of 1005300331 is about 1001.7636646583.

Adding to 1005300331 its reverse (1330035001), we get a palindrome (2335335332).

The spelling of 1005300331 in words is "one billion, five million, three hundred thousand, three hundred thirty-one".

Divisors: 1 7 1381 9667 103993 727951 143614333 1005300331