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212653630230 = 23523811137997
BaseRepresentation
bin1100011000001100100…
…1001110001100010110
3202022220012022200221220
43012003021032030112
511441003312131410
6241405225151210
721235520014146
oct3060311161426
9668805280856
10212653630230
1182205480948
123526932b506
131708ca09142
14a414846926
1557e92a8070
hex318324e316

212653630230 has 64 divisors (see below), whose sum is σ = 532638332928. Its totient is φ = 54233970560.

The previous prime is 212653630219. The next prime is 212653630243. The reversal of 212653630230 is 32036356212.

It is a junction number, because it is equal to n+sod(n) for n = 212653630191 and 212653630200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5577592 + ... + 5615588.

It is an arithmetic number, because the mean of its divisors is an integer number (8322473952).

Almost surely, 2212653630230 is an apocalyptic number.

212653630230 is an abundant number, since it is smaller than the sum of its proper divisors (319984702698).

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

212653630230 is a wasteful number, since it uses less digits than its factorization.

212653630230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46141.

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 212653630230 its reverse (32036356212), we get a palindrome (244689986442).

The spelling of 212653630230 in words is "two hundred twelve billion, six hundred fifty-three million, six hundred thirty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 8111 16222 24333 37997 40555 48666 75994 81110 113991 121665 186553 189985 227982 243330 373106 379970 559659 569955 873931 932765 1119318 1139910 1747862 1865530 2621793 2798295 4369655 5243586 5596590 8739310 13108965 26217930 308193667 616387334 924581001 1540968335 1849162002 3081936670 4622905005 7088454341 9245810010 14176908682 21265363023 35442271705 42530726046 70884543410 106326815115 212653630230