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3021214021 = 72371666417
BaseRepresentation
bin1011010000010100…
…0001000101000101
321210112221120111121
42310011001011011
522141412322041
61215443033541
7134603616100
oct26405010505
97715846447
103021214021
11131043a8a1
1270396b8b1
13391c01407
14209369737
1512a3847d1
hexb4141145

3021214021 has 12 divisors (see below), whose sum is σ = 3609461388. Its totient is φ = 2519620992.

The previous prime is 3021214019. The next prime is 3021214069. The reversal of 3021214021 is 1204121203.

It can be written as a sum of positive squares in 2 ways, for example, as 1094881921 + 1926332100 = 33089^2 + 43890^2 .

It is not a de Polignac number, because 3021214021 - 21 = 3021214019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3021213986 and 3021214004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3021211021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 831396 + ... + 835021.

It is an arithmetic number, because the mean of its divisors is an integer number (300788449).

Almost surely, 23021214021 is an apocalyptic number.

It is an amenable number.

3021214021 is a deficient number, since it is larger than the sum of its proper divisors (588247367).

3021214021 is a wasteful number, since it uses less digits than its factorization.

3021214021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666468 (or 1666461 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 3021214021 is about 54965.5712332729. The cubic root of 3021214021 is about 1445.6411343767.

Adding to 3021214021 its reverse (1204121203), we get a palindrome (4225335224).

The spelling of 3021214021 in words is "three billion, twenty-one million, two hundred fourteen thousand, twenty-one".

Divisors: 1 7 37 49 259 1813 1666417 11664919 61657429 81654433 431602003 3021214021