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11312112270 = 2351928516961
BaseRepresentation
bin10101000100100000…
…10010001010001110
31002012100201211210010
422202100102022032
5141131400043040
65110253454050
7550216240104
oct124220221216
932170654703
1011312112270
114885435418
1222384a1326
1310b37a6574
14794517c74
15463191e80
hex2a241228e

11312112270 has 64 divisors (see below), whose sum is σ = 28592098560. Its totient is φ = 2856384000.

The previous prime is 11312112269. The next prime is 11312112281. The reversal of 11312112270 is 7221121311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1621590 + ... + 1628550.

It is an arithmetic number, because the mean of its divisors is an integer number (446751540).

Almost surely, 211312112270 is an apocalyptic number.

11312112270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11312112270 is an abundant number, since it is smaller than the sum of its proper divisors (17279986290).

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

11312112270 is a wasteful number, since it uses less digits than its factorization.

11312112270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9841.

The product of its (nonzero) digits is 168, while the sum is 21.

Adding to 11312112270 its reverse (7221121311), we get a palindrome (18533233581).

The spelling of 11312112270 in words is "eleven billion, three hundred twelve million, one hundred twelve thousand, two hundred seventy".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 2851 5702 6961 8553 13922 14255 17106 20883 28510 34805 41766 42765 54169 69610 85530 104415 108338 132259 162507 208830 264518 270845 325014 396777 541690 661295 793554 812535 1322590 1625070 1983885 3967770 19845811 39691622 59537433 99229055 119074866 198458110 297687165 377070409 595374330 754140818 1131211227 1885352045 2262422454 3770704090 5656056135 11312112270