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3031080621 = 319432115861
BaseRepresentation
bin1011010010101010…
…1001111010101101
321211020111211221020
42310222221322231
522201424034441
61220434324353
7135053521512
oct26452517255
97736454836
103031080621
111315a69808
127071296b9
13393c7733a
1420a7b7309
1512b182e66
hexb4aa9ead

3031080621 has 32 divisors (see below), whose sum is σ = 4374458880. Its totient is φ = 1860667200.

The previous prime is 3031080607. The next prime is 3031080623. The reversal of 3031080621 is 1260801303.

It is not a de Polignac number, because 3031080621 - 26 = 3031080557 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3031080591 and 3031080600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031080623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 514231 + ... + 520091.

It is an arithmetic number, because the mean of its divisors is an integer number (136701840).

Almost surely, 23031080621 is an apocalyptic number.

It is an amenable number.

3031080621 is a deficient number, since it is larger than the sum of its proper divisors (1343378259).

3031080621 is a wasteful number, since it uses less digits than its factorization.

3031080621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6137.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 3031080621 is about 55055.2506215347. The cubic root of 3031080621 is about 1447.2131364085.

Adding to 3031080621 its reverse (1260801303), we get a palindrome (4291881924).

The spelling of 3031080621 in words is "three billion, thirty-one million, eighty thousand, six hundred twenty-one".

Divisors: 1 3 19 43 57 129 211 633 817 2451 4009 5861 9073 12027 17583 27219 111359 172387 252023 334077 517161 756069 1236671 3710013 4788437 14365311 23496749 53176853 70490247 159530559 1010360207 3031080621