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93213021220 = 22511574973699
BaseRepresentation
bin101011011001111101…
…1011101010000100100
322220121011202002122021
41112303323131100210
53011400013134340
6110453234312524
76506622415234
oct1266373352044
9286534662567
1093213021220
1136593358530
1216094a28744
138a3669c877
144723915cc4
15265849ce4a
hex15b3edd424

93213021220 has 48 divisors (see below), whose sum is σ = 213582600000. Its totient is φ = 33889288320.

The previous prime is 93213021211. The next prime is 93213021233. The reversal of 93213021220 is 2212031239.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1227931 + ... + 1301629.

It is an arithmetic number, because the mean of its divisors is an integer number (4449637500).

Almost surely, 293213021220 is an apocalyptic number.

It is an amenable number.

93213021220 is an abundant number, since it is smaller than the sum of its proper divisors (120369578780).

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

93213021220 is a wasteful number, since it uses less digits than its factorization.

93213021220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79468 (or 79466 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 93213021220 its reverse (2212031239), we get a palindrome (95425052459).

The spelling of 93213021220 in words is "ninety-three billion, two hundred thirteen million, twenty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 5749 11498 22996 28745 57490 63239 73699 114980 126478 147398 252956 294796 316195 368495 632390 736990 810689 1264780 1473980 1621378 3242756 4053445 8106890 16213780 423695551 847391102 1694782204 2118477755 4236955510 4660651061 8473911020 9321302122 18642604244 23303255305 46606510610 93213021220