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3121451214 = 2372193531583
BaseRepresentation
bin1011101000001101…
…1001000011001110
322001112120011002020
42322003121003032
522343042414324
61233423311010
7140231616600
oct27203310316
98045504066
103121451214
111361a83552
1273144b466
133a98c8b6b
142187bd170
15134084679
hexba0d90ce

3121451214 has 96 divisors (see below), whose sum is σ = 7670868480. Its totient is φ = 841978368.

The previous prime is 3121451183. The next prime is 3121451219. The reversal of 3121451214 is 4121541213.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121451219) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1971067 + ... + 1972649.

It is an arithmetic number, because the mean of its divisors is an integer number (79904880).

Almost surely, 23121451214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3121451214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3835434240).

3121451214 is an abundant number, since it is smaller than the sum of its proper divisors (4549417266).

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

3121451214 is a wasteful number, since it uses less digits than its factorization.

3121451214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974 (or 1967 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 3121451214 is about 55869.9491139915. The cubic root of 3121451214 is about 1461.4552347776.

Adding to 3121451214 its reverse (4121541213), we get a palindrome (7242992427).

It can be divided in two parts, 31214 and 51214, that added together give a palindrome (82428).

The spelling of 3121451214 in words is "three billion, one hundred twenty-one million, four hundred fifty-one thousand, two hundred fourteen".

Divisors: 1 2 3 6 7 14 19 21 38 42 49 57 98 114 133 147 266 294 353 399 706 798 931 1059 1583 1862 2118 2471 2793 3166 4749 4942 5586 6707 7413 9498 11081 13414 14826 17297 20121 22162 30077 33243 34594 40242 46949 51891 60154 66486 77567 90231 93898 103782 140847 155134 180462 210539 232701 281694 328643 421078 465402 558799 631617 657286 985929 1117598 1263234 1473773 1676397 1971858 2947546 3352794 3911593 4421319 7823186 8842638 10617181 11734779 21234362 23469558 27381151 31851543 54762302 63703086 74320267 82143453 148640534 164286906 222960801 445921602 520241869 1040483738 1560725607 3121451214