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188424412212 = 223181425920369
BaseRepresentation
bin1010111101111011111…
…0000101110000110100
3200000100121202220020210
42233132332011300310
511041343122142322
6222321101025420
716420222035441
oct2573676056064
9600317686223
10188424412212
1172a01739823
1230626b55270
13149cb09574a
1491969c09c8
154d7c0da70c
hex2bdef85c34

188424412212 has 48 divisors (see below), whose sum is σ = 442211515200. Its totient is φ = 62443399680.

The previous prime is 188424412171. The next prime is 188424412247. The reversal of 188424412212 is 212214424881.

It is a congruent number.

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, 9240364 + ... + 9260732.

It is an arithmetic number, because the mean of its divisors is an integer number (9212739900).

Almost surely, 2188424412212 is an apocalyptic number.

188424412212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

188424412212 is an abundant number, since it is smaller than the sum of its proper divisors (253787102988).

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

188424412212 is a wasteful number, since it uses less digits than its factorization.

188424412212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24816 (or 24814 counting only the distinct ones).

The product of its digits is 65536, while the sum is 39.

The spelling of 188424412212 in words is "one hundred eighty-eight billion, four hundred twenty-four million, four hundred twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 181 362 543 724 1086 2172 4259 8518 12777 17036 20369 25554 40738 51108 61107 81476 122214 244428 770879 1541758 2312637 3083516 3686789 4625274 7373578 9250548 11060367 14747156 22120734 44241468 86751571 173503142 260254713 347006284 520509426 1041018852 15702034351 31404068702 47106103053 62808137404 94212206106 188424412212