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97309683425 = 5217297895309
BaseRepresentation
bin101101010100000011…
…0111110111011100001
3100022011200100002201002
41122220012332323201
53043242234332200
6112411540121345
710013265442643
oct1325006767341
9308150302632
1097309683425
11382a5863479
1216a38996255
13923a336746
1449d1a2c893
1527e7e68bd5
hex16a81beee1

97309683425 has 24 divisors (see below), whose sum is σ = 132167489400. Its totient is φ = 70741959680.

The previous prime is 97309683413. The next prime is 97309683451. The reversal of 97309683425 is 52438690379.

It can be written as a sum of positive squares in 12 ways, for example, as 31697885521 + 65611797904 = 178039^2 + 256148^2 .

It is not a de Polignac number, because 97309683425 - 24 = 97309683409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3935330 + ... + 3959979.

It is an arithmetic number, because the mean of its divisors is an integer number (5506978725).

Almost surely, 297309683425 is an apocalyptic number.

It is an amenable number.

97309683425 is a deficient number, since it is larger than the sum of its proper divisors (34857805975).

97309683425 is a wasteful number, since it uses less digits than its factorization.

97309683425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7895365 (or 7895360 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 56.

The spelling of 97309683425 in words is "ninety-seven billion, three hundred nine million, six hundred eighty-three thousand, four hundred twenty-five".

Divisors: 1 5 17 25 29 85 145 425 493 725 2465 12325 7895309 39476545 134220253 197382725 228963961 671101265 1144819805 3355506325 3892387337 5724099025 19461936685 97309683425