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54125890420900 = 2252199236972
BaseRepresentation
bin11000100111010001010100…
…11110001100000010100100
321002122101101100212221222111
430103220222132030002210
524043244310421432100
6311041031340010404
714254316010355354
oct1423505236140244
9232571340787874
1054125890420900
11162787300a1221
1260a1b63230a04
132428084b85c0c
14d519c82d6b64
1563ce12cb06ba
hex313a2a78c0a4

54125890420900 has 81 divisors (see below), whose sum is σ = 118078304073219. Its totient is φ = 21535733640960.

The previous prime is 54125890420867. The next prime is 54125890420933. The reversal of 54125890420900 is 902409852145.

The square root of 54125890420900 is 7357030.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (54125890420867) and next prime (54125890420933).

It can be written as a sum of positive squares in 4 ways, for example, as 18465979406436 + 35659911014464 = 4297206^2 + 5971592^2 .

It is a super-2 number, since 2×541258904209002 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 14640487852 + ... + 14640491548.

Almost surely, 254125890420900 is an apocalyptic number.

54125890420900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

54125890420900 is the 7357030-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54125890420900

54125890420900 is an abundant number, since it is smaller than the sum of its proper divisors (63952413652319).

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

54125890420900 is an frugal number, since it uses more digits than its factorization.

54125890420900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7806 (or 3903 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 49.

The spelling of 54125890420900 in words is "fifty-four trillion, one hundred twenty-five billion, eight hundred ninety million, four hundred twenty thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 199 398 796 995 1990 3697 3980 4975 7394 9950 14788 18485 19900 36970 39601 73940 79202 92425 158404 184850 198005 369700 396010 735703 792020 990025 1471406 1980050 2942812 3678515 3960100 7357030 13667809 14714060 18392575 27335618 36785150 54671236 68339045 73570300 136678090 146404897 273356180 292809794 341695225 585619588 683390450 732024485 1366780900 1464048970 2719893991 2928097940 3660122425 5439787982 7320244850 10879575964 13599469955 14640489700 27198939910 54397879820 67997349775 135994699550 271989399100 541258904209 1082517808418 2165035616836 2706294521045 5412589042090 10825178084180 13531472605225 27062945210450 54125890420900