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23031125310 = 23519167313773
BaseRepresentation
bin10101011100110000…
…110001010100111110
32012110002010101111010
4111130300301110332
5334131432002220
614325204540050
71443506222634
oct253460612476
965402111433
1023031125310
119849519366
1245690b1626
1322306693cb
141186ab1354
158ebe0c1e0
hex55cc3153e

23031125310 has 128 divisors (see below), whose sum is σ = 58795269120. Its totient is φ = 5757613056.

The previous prime is 23031125303. The next prime is 23031125317. The reversal of 23031125310 is 1352113032.

It is an interprime number because it is at equal distance from previous prime (23031125303) and next prime (23031125317).

It is a super-2 number, since 2×230311253102 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031125317) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29794084 + ... + 29794856.

It is an arithmetic number, because the mean of its divisors is an integer number (459338040).

Almost surely, 223031125310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23031125310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29397634560).

23031125310 is an abundant number, since it is smaller than the sum of its proper divisors (35764143810).

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

23031125310 is a wasteful number, since it uses less digits than its factorization.

23031125310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282.

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 23031125310 its reverse (1352113032), we get a palindrome (24383238342).

The spelling of 23031125310 in words is "twenty-three billion, thirty-one million, one hundred twenty-five thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 167 190 285 313 334 501 570 626 773 835 939 1002 1546 1565 1670 1878 2319 2505 3130 3173 3865 4638 4695 5010 5947 6346 7730 9390 9519 11595 11894 14687 15865 17841 19038 23190 29374 29735 31730 35682 44061 47595 52271 59470 73435 88122 89205 95190 104542 129091 146870 156813 178410 220305 241949 258182 261355 313626 387273 440610 483898 522710 645455 725847 774546 784065 993149 1209745 1290910 1451694 1568130 1936365 1986298 2419490 2452729 2979447 3629235 3872730 4597031 4905458 4965745 5958894 7258470 7358187 9194062 9931490 12263645 13791093 14716374 14897235 22985155 24527290 27582186 29794470 36790935 40405483 45970310 68955465 73581870 80810966 121216449 137910930 202027415 242432898 404054830 606082245 767704177 1212164490 1535408354 2303112531 3838520885 4606225062 7677041770 11515562655 23031125310