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97448687 = 713921241
BaseRepresentation
bin1011100111011…
…11001011101111
320210100220110122
411303233023233
5144421324222
613400355155
72262204650
oct563571357
9223326418
1097448687
1150009706
1228775abb
131725c45b
14cd29527
15884da42
hex5cef2ef

97448687 has 4 divisors (see below), whose sum is σ = 111369936. Its totient is φ = 83527440.

The previous prime is 97448657. The next prime is 97448699. The reversal of 97448687 is 78684479.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97448687 - 26 = 97448623 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 (97448627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6960614 + ... + 6960627.

It is an arithmetic number, because the mean of its divisors is an integer number (27842484).

Almost surely, 297448687 is an apocalyptic number.

97448687 is a deficient number, since it is larger than the sum of its proper divisors (13921249).

97448687 is a wasteful number, since it uses less digits than its factorization.

97448687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13921248.

The product of its digits is 2709504, while the sum is 53.

The square root of 97448687 is about 9871.6101523510. The cubic root of 97448687 is about 460.1774472930.

The spelling of 97448687 in words is "ninety-seven million, four hundred forty-eight thousand, six hundred eighty-seven".

Divisors: 1 7 13921241 97448687