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67800348225 = 3252173592
BaseRepresentation
bin111111001001001101…
…110011011001000001
320111000010022112220100
4333021031303121001
52102323342120400
651051432433013
74620104310501
oct771115633101
9214003275810
1067800348225
1126832590145
1211182248769
13651680865c
1433d2829a01
151b6c462100
hexfc9373641

67800348225 has 27 divisors (see below), whose sum is σ = 121444953123. Its totient is φ = 36158102640.

The previous prime is 67800348223. The next prime is 67800348229. The reversal of 67800348225 is 52284300876.

The square root of 67800348225 is 260385.

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

67800348225 is a `hidden beast` number, since 6 + 7 + 80 + 0 + 348 + 225 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24408125361 + 43392222864 = 156231^2 + 208308^2 .

It is not a de Polignac number, because 67800348225 - 21 = 67800348223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (67800348223) by changing a digit.

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, 3897096 + ... + 3914454.

Almost surely, 267800348225 is an apocalyptic number.

67800348225 is the 260385-th square number.

67800348225 is the 130193-rd centered octagonal number.

It is an amenable number.

67800348225 is a deficient number, since it is larger than the sum of its proper divisors (53644604898).

67800348225 is an frugal number, since it uses more digits than its factorization.

67800348225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34734 (or 17367 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

It can be divided in two parts, 67800 and 348225, that added together give a square (416025 = 6452).

The spelling of 67800348225 in words is "sixty-seven billion, eight hundred million, three hundred forty-eight thousand, two hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 17359 52077 86795 156231 260385 433975 781155 1301925 3905775 301334881 904004643 1506674405 2712013929 4520023215 7533372025 13560069645 22600116075 67800348225