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73186480900 = 225213220812
BaseRepresentation
bin100010000101001000…
…0010001001100000100
320222220111021102220201
41010022100101030010
52144341214342100
653342120140244
75200425552301
oct1041220211404
9228814242821
1073186480900
1129046951365
1212226007684
136b94661900
143783cc20a8
151d8523d36a
hex110a411304

73186480900 has 81 divisors (see below), whose sum is σ = 172053586173. Its totient is φ = 27009715200.

The previous prime is 73186480877. The next prime is 73186480901. The reversal of 73186480900 is 908468137.

It is a happy number.

The square root of 73186480900 is 270530.

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

It can be written as a sum of positive squares in 13 ways, for example, as 71945187076 + 1241293824 = 268226^2 + 35232^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73186480901) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 35167860 + ... + 35169940.

Almost surely, 273186480900 is an apocalyptic number.

73186480900 is the 270530-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73186480900

73186480900 is an abundant number, since it is smaller than the sum of its proper divisors (98867105273).

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

73186480900 is a wasteful number, since it uses less digits than its factorization.

73186480900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202 (or 2101 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 73186480900 in words is "seventy-three billion, one hundred eighty-six million, four hundred eighty thousand, nine hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 169 260 325 338 650 676 845 1300 1690 2081 3380 4162 4225 8324 8450 10405 16900 20810 27053 41620 52025 54106 104050 108212 135265 208100 270530 351689 541060 676325 703378 1352650 1406756 1758445 2705300 3516890 4330561 7033780 8661122 8792225 17322244 17584450 21652805 35168900 43305610 56297293 86611220 108264025 112594586 216528050 225189172 281486465 433056100 562972930 731864809 1125945860 1407432325 1463729618 2814864650 2927459236 3659324045 5629729300 7318648090 14637296180 18296620225 36593240450 73186480900