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6138880 = 210511109
BaseRepresentation
bin10111011010110000000000
3102112212221221
4113122300000
53032421010
6335324424
7103115416
oct27326000
912485857
106138880
113513260
122080714
13136c297
14b5b2b6
15813dda
hex5dac00

6138880 has 88 divisors (see below), whose sum is σ = 16212240. Its totient is φ = 2211840.

The previous prime is 6138877. The next prime is 6138883. The reversal of 6138880 is 888316.

It is an interprime number because it is at equal distance from previous prime (6138877) and next prime (6138883).

It is a tau number, because it is divible by the number of its divisors (88).

It is not an unprimeable number, because it can be changed into a prime (6138883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56266 + ... + 56374.

It is an arithmetic number, because the mean of its divisors is an integer number (184230).

Almost surely, 26138880 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 6138880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8106120).

6138880 is an abundant number, since it is smaller than the sum of its proper divisors (10073360).

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

6138880 is a wasteful number, since it uses less digits than its factorization.

6138880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 6138880 is about 2477.6763307583. The cubic root of 6138880 is about 183.1033884812.

The spelling of 6138880 in words is "six million, one hundred thirty-eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 109 110 128 160 176 218 220 256 320 352 436 440 512 545 640 704 872 880 1024 1090 1199 1280 1408 1744 1760 2180 2398 2560 2816 3488 3520 4360 4796 5120 5632 5995 6976 7040 8720 9592 11264 11990 13952 14080 17440 19184 23980 27904 28160 34880 38368 47960 55808 56320 69760 76736 95920 111616 139520 153472 191840 279040 306944 383680 558080 613888 767360 1227776 1534720 3069440 6138880