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228651837418780 = 22511432591870939
BaseRepresentation
bin110011111111010100100111…
…100010111110110100011100
31002222120220100200120201220221
4303333110213202332310130
5214432212430334400110
62130145112021451124
766106356454111546
oct6377244742766434
91088526320521827
10228651837418780
1166945777311086
122178a311870aa4
139a77a11425a19
144066b4514c696
151b67b5ba487da
hexcff5278bed1c

228651837418780 has 12 divisors (see below), whose sum is σ = 480168858579480. Its totient is φ = 91460734967504.

The previous prime is 228651837418759. The next prime is 228651837418819. The reversal of 228651837418780 is 87814738156822.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5716295935450 + ... + 5716295935489.

It is an arithmetic number, because the mean of its divisors is an integer number (40014071548290).

Almost surely, 2228651837418780 is an apocalyptic number.

228651837418780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228651837418780 is an abundant number, since it is smaller than the sum of its proper divisors (251517021160700).

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

228651837418780 is a wasteful number, since it uses less digits than its factorization.

228651837418780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11432591870948 (or 11432591870946 counting only the distinct ones).

The product of its (nonzero) digits is 289013760, while the sum is 70.

The spelling of 228651837418780 in words is "two hundred twenty-eight trillion, six hundred fifty-one billion, eight hundred thirty-seven million, four hundred eighteen thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 11432591870939 22865183741878 45730367483756 57162959354695 114325918709390 228651837418780