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1002122031 = 3794228363
BaseRepresentation
bin111011101110110…
…010101100101111
32120211200001222210
4323232302230233
54023020401111
6243234541503
733555616401
oct7356625457
92524601883
101002122031
11474743129
1223b737893
1312c801021
1497140b71
155cea00a6
hex3bbb2b2f

1002122031 has 8 divisors (see below), whose sum is σ = 1353076480. Its totient is φ = 659624472.

The previous prime is 1002121963. The next prime is 1002122047. The reversal of 1002122031 is 1302212001.

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

It is not a de Polignac number, because 1002122031 - 210 = 1002121007 is a prime.

It is a super-2 number, since 2×10021220312 = 2008497130031129922, 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 = 1002121998 and 1002122016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002122071) 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, 2113945 + ... + 2114418.

It is an arithmetic number, because the mean of its divisors is an integer number (169134560).

Almost surely, 21002122031 is an apocalyptic number.

1002122031 is a deficient number, since it is larger than the sum of its proper divisors (350954449).

1002122031 is an equidigital number, since it uses as much as digits as its factorization.

1002122031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4228445.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1002122031 is about 31656.3110769401. The cubic root of 1002122031 is about 1000.7068439206.

Adding to 1002122031 its reverse (1302212001), we get a palindrome (2304334032).

The spelling of 1002122031 in words is "one billion, two million, one hundred twenty-two thousand, thirty-one".

Divisors: 1 3 79 237 4228363 12685089 334040677 1002122031