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1228806801 = 33174216359
BaseRepresentation
bin100100100111110…
…0001101010010001
310011122012212001000
41021033201222101
510004033304201
6321533332213
742310454055
oct11117415221
93148185030
101228806801
115806a1812
122a3637069
1316776c321
14b92abc65
1572d2ad86
hex493e1a91

1228806801 has 32 divisors (see below), whose sum is σ = 1932422400. Its totient is φ = 769063680.

The previous prime is 1228806797. The next prime is 1228806823. The reversal of 1228806801 is 1086088221.

It is not a de Polignac number, because 1228806801 - 22 = 1228806797 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1228806851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190060 + ... + 196418.

It is an arithmetic number, because the mean of its divisors is an integer number (60388200).

Almost surely, 21228806801 is an apocalyptic number.

It is an amenable number.

1228806801 is a deficient number, since it is larger than the sum of its proper divisors (703615599).

1228806801 is a wasteful number, since it uses less digits than its factorization.

1228806801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6806 (or 6800 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 1228806801 is about 35054.3406869962. The cubic root of 1228806801 is about 1071.0946961753.

The spelling of 1228806801 in words is "one billion, two hundred twenty-eight million, eight hundred six thousand, eight hundred one".

Divisors: 1 3 9 17 27 51 153 421 459 1263 3789 6359 7157 11367 19077 21471 57231 64413 108103 171693 193239 324309 972927 2677139 2918781 8031417 24094251 45511363 72282753 136534089 409602267 1228806801