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97750131 = 332583377
BaseRepresentation
bin1011101001110…
…00110001110011
320210221012222020
411310320301303
5200011001011
613411042523
72264601543
oct564706163
9223835866
1097750131
11501a5136
12288a0443
131733671b
14cda7323
1588ad006
hex5d38c73

97750131 has 4 divisors (see below), whose sum is σ = 130333512. Its totient is φ = 65166752.

The previous prime is 97750091. The next prime is 97750157. The reversal of 97750131 is 13105779.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13105779 = 34368593.

It is a cyclic number.

It is not a de Polignac number, because 97750131 - 214 = 97733747 is a prime.

It is a super-3 number, since 3×977501313 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 97750092 and 97750101.

It is not an unprimeable number, because it can be changed into a prime (97751131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16291686 + ... + 16291691.

It is an arithmetic number, because the mean of its divisors is an integer number (32583378).

Almost surely, 297750131 is an apocalyptic number.

97750131 is a deficient number, since it is larger than the sum of its proper divisors (32583381).

97750131 is a wasteful number, since it uses less digits than its factorization.

97750131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32583380.

The product of its (nonzero) digits is 6615, while the sum is 33.

The square root of 97750131 is about 9886.8665915951. The cubic root of 97750131 is about 460.6514572406.

The spelling of 97750131 in words is "ninety-seven million, seven hundred fifty thousand, one hundred thirty-one".

Divisors: 1 3 32583377 97750131