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1002213111 = 31572127841
BaseRepresentation
bin111011101111001…
…000111011110111
32120211211200221010
4323233020323313
54023031304421
6243240523303
733556446054
oct7357107367
92524750833
101002213111
114747a55a9
1223b780533
1312c833613
149716602b
155cebc076
hex3bbc8ef7

1002213111 has 8 divisors (see below), whose sum is σ = 1344796144. Its totient is φ = 663886080.

The previous prime is 1002213089. The next prime is 1002213127. The reversal of 1002213111 is 1113122001.

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

It is not a de Polignac number, because 1002213111 - 221 = 1000115959 is a prime.

It is a super-2 number, since 2×10022131112 = 2008862239720596642, which contains 22 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 (1002213151) 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, 1063450 + ... + 1064391.

It is an arithmetic number, because the mean of its divisors is an integer number (168099518).

Almost surely, 21002213111 is an apocalyptic number.

1002213111 is a deficient number, since it is larger than the sum of its proper divisors (342583033).

1002213111 is a wasteful number, since it uses less digits than its factorization.

1002213111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128001.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1002213111 is about 31657.7496199588. The cubic root of 1002213111 is about 1000.7371601281.

Adding to 1002213111 its reverse (1113122001), we get a palindrome (2115335112).

The spelling of 1002213111 in words is "one billion, two million, two hundred thirteen thousand, one hundred eleven".

Divisors: 1 3 157 471 2127841 6383523 334071037 1002213111