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2031313130 = 2572113112157
BaseRepresentation
bin111100100010011…
…0110000011101010
312020120021101202122
41321010312003222
513130004010010
6533322031242
7101223606500
oct17104660352
95216241678
102031313130
11952694690
12488348522
13264abbc42
14153aca670
15bd4ea855
hex791360ea

2031313130 has 96 divisors (see below), whose sum is σ = 4790057472. Its totient is φ = 612662400.

The previous prime is 2031313121. The next prime is 2031313133. The reversal of 2031313130 is 313131302.

It is a super-2 number, since 2×20313131302 = 8252466064220793800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2031313099 and 2031313108.

It is not an unprimeable number, because it can be changed into a prime (2031313133) 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, 161012 + ... + 173168.

It is an arithmetic number, because the mean of its divisors is an integer number (49896432).

Almost surely, 22031313130 is an apocalyptic number.

2031313130 is an abundant number, since it is smaller than the sum of its proper divisors (2758744342).

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

2031313130 is a wasteful number, since it uses less digits than its factorization.

2031313130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12220 (or 12213 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 2031313130 is about 45070.0913023260. The cubic root of 2031313130 is about 1266.4623747938.

Adding to 2031313130 its reverse (313131302), we get a palindrome (2344444432).

The spelling of 2031313130 in words is "two billion, thirty-one million, three hundred thirteen thousand, one hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 31 35 49 55 62 70 77 98 110 154 155 217 245 310 341 385 434 490 539 682 770 1078 1085 1519 1705 2170 2387 2695 3038 3410 4774 5390 7595 11935 12157 15190 16709 23870 24314 33418 60785 83545 85099 121570 133727 167090 170198 267454 376867 425495 595693 668635 753734 850990 936089 1191386 1337270 1872178 1884335 2638069 2978465 3768670 4145537 4680445 5276138 5956930 6552623 8291074 9360890 13105246 13190345 18466483 20727685 26380690 29018759 32763115 36932966 41455370 58037518 65526230 92332415 145093795 184664830 203131313 290187590 406262626 1015656565 2031313130