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1227396048 = 243195367379
BaseRepresentation
bin100100100101000…
…1001001111010000
310011112120011211220
41021022021033100
510003203133143
6321443205040
742262460064
oct11112111720
93145504756
101227396048
1157a9188aa
122a3076780
13167397168
14b9021aa4
1572b4cd83
hex492893d0

1227396048 has 160 divisors (see below), whose sum is σ = 3460492800. Its totient is φ = 373621248.

The previous prime is 1227396043. The next prime is 1227396091. The reversal of 1227396048 is 8406937221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227396041) 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, 3238323 + ... + 3238701.

It is an arithmetic number, because the mean of its divisors is an integer number (21628080).

Almost surely, 21227396048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1227396048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1730246400).

1227396048 is an abundant number, since it is smaller than the sum of its proper divisors (2233096752).

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

1227396048 is a wasteful number, since it uses less digits than its factorization.

1227396048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 1227396048 is about 35034.2125357485. The cubic root of 1227396048 is about 1070.6846429198.

The spelling of 1227396048 in words is "one billion, two hundred twenty-seven million, three hundred ninety-six thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 16 19 24 38 48 53 57 67 76 106 114 134 152 159 201 212 228 268 304 318 379 402 424 456 536 636 758 804 848 912 1007 1072 1137 1272 1273 1516 1608 2014 2274 2544 2546 3021 3032 3216 3551 3819 4028 4548 5092 6042 6064 7102 7201 7638 8056 9096 10184 10653 12084 14204 14402 15276 16112 18192 20087 20368 21306 21603 24168 25393 28408 28804 30552 40174 42612 43206 48336 50786 56816 57608 60261 61104 67469 76179 80348 85224 86412 101572 115216 120522 134938 152358 160696 170448 172824 202407 203144 241044 269876 304716 321392 345648 381653 404814 406288 482088 482467 539752 609432 763306 809628 964176 964934 1079504 1144959 1218864 1345829 1447401 1526612 1619256 1929868 2289918 2691658 2894802 3053224 3238512 3859736 4037487 4579836 5383316 5789604 6106448 7719472 8074974 9159672 10766632 11579208 16149948 18319344 21533264 23158416 25570751 32299896 51141502 64599792 76712253 102283004 153424506 204566008 306849012 409132016 613698024 1227396048