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97508140 = 2254875407
BaseRepresentation
bin1011100111111…
…01101100101100
320210110221000121
411303331230230
5144430230030
613401534324
72262543202
oct563755454
9223427017
1097508140
115004a344
12287a43a4
1317280532
14cd43072
15886147a
hex5cfdb2c

97508140 has 12 divisors (see below), whose sum is σ = 204767136. Its totient is φ = 39003248.

The previous prime is 97508129. The next prime is 97508149. The reversal of 97508140 is 4180579.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 97508096 and 97508105.

It is not an unprimeable number, because it can be changed into a prime (97508149) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2437684 + ... + 2437723.

It is an arithmetic number, because the mean of its divisors is an integer number (17063928).

Almost surely, 297508140 is an apocalyptic number.

It is an amenable number.

97508140 is an abundant number, since it is smaller than the sum of its proper divisors (107258996).

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

97508140 is a wasteful number, since it uses less digits than its factorization.

97508140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4875416 (or 4875414 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 97508140 is about 9874.6210053855. The cubic root of 97508140 is about 460.2710123225.

The spelling of 97508140 in words is "ninety-seven million, five hundred eight thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 4875407 9750814 19501628 24377035 48754070 97508140