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97680967 = 193506119
BaseRepresentation
bin1011101001001…
…11111001000111
320210210201002121
411310213321013
5200001242332
613405350411
72264163106
oct564477107
9223721077
1097680967
115015817a
1228868407
13173110b7
14cd8a03d
158897797
hex5d27e47

97680967 has 4 divisors (see below), whose sum is σ = 98187280. Its totient is φ = 97174656.

The previous prime is 97680959. The next prime is 97681043. The reversal of 97680967 is 76908679.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76908679 = 151509329.

It is a cyclic number.

It is not a de Polignac number, because 97680967 - 23 = 97680959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97680367) 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, 252867 + ... + 253252.

It is an arithmetic number, because the mean of its divisors is an integer number (24546820).

Almost surely, 297680967 is an apocalyptic number.

97680967 is a deficient number, since it is larger than the sum of its proper divisors (506313).

97680967 is a wasteful number, since it uses less digits than its factorization.

97680967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506312.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 97680967 is about 9883.3682011751. The cubic root of 97680967 is about 460.5427855542.

The spelling of 97680967 in words is "ninety-seven million, six hundred eighty thousand, nine hundred sixty-seven".

Divisors: 1 193 506119 97680967