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1002342131 = 71921033851
BaseRepresentation
bin111011101111101…
…000011011110011
32120212002020220122
4323233220123303
54023044422011
6243243400455
733560524160
oct7357503363
92525066818
101002342131
1147488352a
1223b82312b
1312c87a26b
149719b067
155cee53db
hex3bbe86f3

1002342131 has 24 divisors (see below), whose sum is σ = 1221053184. Its totient is φ = 805820400.

The previous prime is 1002342073. The next prime is 1002342149. The reversal of 1002342131 is 1312432001.

It is a de Polignac number, because none of the positive numbers 2k-1002342131 is a prime.

It is a super-2 number, since 2×10023421312 = 2009379495155242322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002342161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 258356 + ... + 262206.

It is an arithmetic number, because the mean of its divisors is an integer number (50877216).

Almost surely, 21002342131 is an apocalyptic number.

1002342131 is a deficient number, since it is larger than the sum of its proper divisors (218711053).

1002342131 is a wasteful number, since it uses less digits than its factorization.

1002342131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3999 (or 3980 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1002342131 is about 31659.7872860826. The cubic root of 1002342131 is about 1000.7801016166.

Adding to 1002342131 its reverse (1312432001), we get a palindrome (2314774132).

The spelling of 1002342131 in words is "one billion, two million, three hundred forty-two thousand, one hundred thirty-one".

Divisors: 1 7 19 103 133 361 721 1957 2527 3851 13699 26957 37183 73169 260281 396653 512183 1390211 2776571 7536407 9731477 52754849 143191733 1002342131