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54638938080 = 2532553715919
BaseRepresentation
bin110010111000101111…
…000000011111100000
312020000212210122100100
4302320233000133200
51343400032004310
641033434022400
73643001211366
oct627057003740
9166025718310
1054638938080
112119928a981
12a70a577a00
1351c9b713bc
142904885636
15164bc79ec0
hexcb8bc07e0

54638938080 has 144 divisors (see below), whose sum is σ = 189973667520. Its totient is φ = 14295450624.

The previous prime is 54638938007. The next prime is 54638938091. The reversal of 54638938080 is 8083983645.

It is a happy number.

54638938080 is a `hidden beast` number, since 54 + 63 + 89 + 380 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 281640 + ... + 434279.

It is an arithmetic number, because the mean of its divisors is an integer number (1319261580).

Almost surely, 254638938080 is an apocalyptic number.

It is an amenable number.

54638938080 is an abundant number, since it is smaller than the sum of its proper divisors (135334729440).

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

54638938080 is a wasteful number, since it uses less digits than its factorization.

54638938080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715993 (or 715982 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 54638938080 in words is "fifty-four billion, six hundred thirty-eight million, nine hundred thirty-eight thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 53 60 72 80 90 96 106 120 144 159 160 180 212 240 265 288 318 360 424 477 480 530 636 720 795 848 954 1060 1272 1440 1590 1696 1908 2120 2385 2544 3180 3816 4240 4770 5088 6360 7632 8480 9540 12720 15264 19080 25440 38160 76320 715919 1431838 2147757 2863676 3579595 4295514 5727352 6443271 7159190 8591028 10738785 11454704 12886542 14318380 17182056 21477570 22909408 25773084 28636760 32216355 34364112 37943707 42955140 51546168 57273520 64432710 68728224 75887414 85910280 103092336 113831121 114547040 128865420 151774828 171820560 189718535 206184672 227662242 257730840 303549656 341493363 343641120 379437070 455324484 515461680 569155605 607099312 682986726 758874140 910648968 1030923360 1138311210 1214198624 1365973452 1517748280 1707466815 1821297936 2276622420 2731946904 3035496560 3414933630 3642595872 4553244840 5463893808 6070993120 6829867260 9106489680 10927787616 13659734520 18212979360 27319469040 54638938080