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10247215290 = 23513217118891
BaseRepresentation
bin10011000101100100…
…00001100010111010
3222110010221110202020
421202302001202322
5131441241342130
64412453215310
7511635615144
oct114262014272
928403843666
1010247215290
114389316574
121b9b931536
13c73c96500
146d2d15c94
153ee941e10
hex262c818ba

10247215290 has 96 divisors (see below), whose sum is σ = 28197377856. Its totient is φ = 2373995520.

The previous prime is 10247215217. The next prime is 10247215313. The reversal of 10247215290 is 9251274201.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26745 + ... + 145635.

It is an arithmetic number, because the mean of its divisors is an integer number (293722686).

Almost surely, 210247215290 is an apocalyptic number.

10247215290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10247215290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14098688928).

10247215290 is an abundant number, since it is smaller than the sum of its proper divisors (17950162566).

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

10247215290 is a wasteful number, since it uses less digits than its factorization.

10247215290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118944 (or 118931 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

Adding to 10247215290 its reverse (9251274201), we get a palindrome (19498489491).

The spelling of 10247215290 in words is "ten billion, two hundred forty-seven million, two hundred fifteen thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 13 15 17 26 30 34 39 51 65 78 85 102 130 169 170 195 221 255 338 390 442 507 510 663 845 1014 1105 1326 1690 2210 2535 2873 3315 5070 5746 6630 8619 14365 17238 28730 43095 86190 118891 237782 356673 594455 713346 1188910 1545583 1783365 2021147 3091166 3566730 4042294 4636749 6063441 7727915 9273498 10105735 12126882 15455830 20092579 20211470 23183745 26274911 30317205 40185158 46367490 52549822 60277737 60634410 78824733 100462895 120555474 131374555 157649466 200925790 262749110 301388685 341573843 394123665 602777370 683147686 788247330 1024721529 1707869215 2049443058 3415738430 5123607645 10247215290