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3021144040 = 235411842161
BaseRepresentation
bin1011010000010010…
…1111111111101000
321210112211000111201
42310010233333220
522141403102130
61215441333544
7134603205055
oct26404577750
97715730451
103021144040
1113103a2262
127039372b4
13391ba85c5
1420934c02c
1512a36dbca
hexb412ffe8

3021144040 has 32 divisors (see below), whose sum is σ = 6963372360. Its totient is φ = 1178982400.

The previous prime is 3021144023. The next prime is 3021144041. The reversal of 3021144040 is 404411203.

It can be written as a sum of positive squares in 4 ways, for example, as 2083192164 + 937951876 = 45642^2 + 30626^2 .

It is a super-2 number, since 2×30211440402 = 18254622620855043200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3021143999 and 3021144017.

It is not an unprimeable number, because it can be changed into a prime (3021144041) 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, 919441 + ... + 922720.

Almost surely, 23021144040 is an apocalyptic number.

It is an amenable number.

3021144040 is an abundant number, since it is smaller than the sum of its proper divisors (3942228320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3021144040 is a wasteful number, since it uses less digits than its factorization.

3021144040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842213 (or 1842209 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 3021144040 is about 54964.9346401867. The cubic root of 3021144040 is about 1445.6299723964.

Adding to 3021144040 its reverse (404411203), we get a palindrome (3425555243).

The spelling of 3021144040 in words is "three billion, twenty-one million, one hundred forty-four thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 41 82 164 205 328 410 820 1640 1842161 3684322 7368644 9210805 14737288 18421610 36843220 73686440 75528601 151057202 302114404 377643005 604228808 755286010 1510572020 3021144040