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1369238080 = 26572112897
BaseRepresentation
bin101000110011100…
…1110101001000000
310112102110111112111
41101213032221000
510301011104310
6343511305104
745634221520
oct12147165100
93472414474
101369238080
11642998921
1232267b194
1318a89aa62
14cdbc5680
158031a28a
hex519cea40

1369238080 has 112 divisors (see below), whose sum is σ = 3745236096. Its totient is φ = 467066880.

The previous prime is 1369238029. The next prime is 1369238099. The reversal of 1369238080 is 808329631.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471192 + ... + 474088.

It is an arithmetic number, because the mean of its divisors is an integer number (33439608).

Almost surely, 21369238080 is an apocalyptic number.

1369238080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1369238080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1872618048).

1369238080 is an abundant number, since it is smaller than the sum of its proper divisors (2375998016).

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

1369238080 is a wasteful number, since it uses less digits than its factorization.

1369238080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132 (or 3122 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 1369238080 is about 37003.2171574311. The cubic root of 1369238080 is about 1110.4346105366.

The spelling of 1369238080 in words is "one billion, three hundred sixty-nine million, two hundred thirty-eight thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 140 160 211 224 280 320 422 448 560 844 1055 1120 1477 1688 2110 2240 2897 2954 3376 4220 5794 5908 6752 7385 8440 11588 11816 13504 14485 14770 16880 20279 23176 23632 28970 29540 33760 40558 46352 47264 57940 59080 67520 81116 92704 94528 101395 115880 118160 162232 185408 202790 231760 236320 324464 405580 463520 472640 611267 648928 811160 927040 1222534 1297856 1622320 2445068 3056335 3244640 4278869 4890136 6112670 6489280 8557738 9780272 12225340 17115476 19560544 21394345 24450680 34230952 39121088 42788690 48901360 68461904 85577380 97802720 136923808 171154760 195605440 273847616 342309520 684619040 1369238080