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72313033460 = 22547431178489
BaseRepresentation
bin100001101011000110…
…0010101001011110100
320220122121201201021112
41003112030111023310
52141044114032320
653115315134152
75136661433303
oct1032614251364
9226577651245
1072313033460
1128738905378
12120215a4358
136a85703cc5
1436ddcb843a
151d33708ec5
hex10d63152f4

72313033460 has 48 divisors (see below), whose sum is σ = 155449082880. Its totient is φ = 28243941120.

The previous prime is 72313033439. The next prime is 72313033477. The reversal of 72313033460 is 6433031327.

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 15 ways as a sum of consecutive naturals, for example, 315896 + ... + 494384.

It is an arithmetic number, because the mean of its divisors is an integer number (3238522560).

Almost surely, 272313033460 is an apocalyptic number.

It is an amenable number.

72313033460 is an abundant number, since it is smaller than the sum of its proper divisors (83136049420).

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

72313033460 is a wasteful number, since it uses less digits than its factorization.

72313033460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178976 (or 178974 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 32.

Adding to 72313033460 its reverse (6433031327), we get a palindrome (78746064787).

The spelling of 72313033460 in words is "seventy-two billion, three hundred thirteen million, thirty-three thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 47 94 188 235 431 470 862 940 1724 2155 4310 8620 20257 40514 81028 101285 178489 202570 356978 405140 713956 892445 1784890 3569780 8388983 16777966 33555932 41944915 76928759 83889830 153857518 167779660 307715036 384643795 769287590 1538575180 3615651673 7231303346 14462606692 18078258365 36156516730 72313033460