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3121304124 = 2234356910631
BaseRepresentation
bin1011101000001011…
…0101001000111100
322001112021200022110
42322002311020330
522343023212444
61233420214020
7140230435011
oct27202651074
98045250273
103121304124
111361992a94
1273139a310
133a9876c23
14218781708
15134055cb9
hexba0b523c

3121304124 has 48 divisors (see below), whose sum is σ = 7466215680. Its totient is φ = 1014357120.

The previous prime is 3121304107. The next prime is 3121304177. The reversal of 3121304124 is 4214031213.

It is a self number, because there is not a number n which added to its sum of digits gives 3121304124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288289 + ... + 298919.

It is an arithmetic number, because the mean of its divisors is an integer number (155546160).

Almost surely, 23121304124 is an apocalyptic number.

It is an amenable number.

3121304124 is an abundant number, since it is smaller than the sum of its proper divisors (4344911556).

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

3121304124 is a wasteful number, since it uses less digits than its factorization.

3121304124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11250 (or 11248 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 3121304124 is about 55868.6327378790. The cubic root of 3121304124 is about 1461.4322787002.

Adding to 3121304124 its reverse (4214031213), we get a palindrome (7335335337).

The spelling of 3121304124 in words is "three billion, one hundred twenty-one million, three hundred four thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 569 1138 1707 2276 3414 6828 10631 21262 24467 31893 42524 48934 63786 73401 97868 127572 146802 293604 457133 914266 1371399 1828532 2742798 5485596 6049039 12098078 18147117 24196156 36294234 72588468 260108677 520217354 780326031 1040434708 1560652062 3121304124