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97448621 = 432266247
BaseRepresentation
bin1011100111011…
…11001010101101
320210100220101012
411303233022231
5144421323441
613400355005
72262204524
oct563571255
9223326335
1097448621
1150009656
1228775a65
131725c40a
14cd294bb
15884d9eb
hex5cef2ad

97448621 has 4 divisors (see below), whose sum is σ = 99714912. Its totient is φ = 95182332.

The previous prime is 97448599. The next prime is 97448623. The reversal of 97448621 is 12684479.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12684479 = 60720897.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-97448621 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 (97448623) 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, 1133081 + ... + 1133166.

It is an arithmetic number, because the mean of its divisors is an integer number (24928728).

Almost surely, 297448621 is an apocalyptic number.

It is an amenable number.

97448621 is a deficient number, since it is larger than the sum of its proper divisors (2266291).

97448621 is a wasteful number, since it uses less digits than its factorization.

97448621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266290.

The product of its digits is 96768, while the sum is 41.

The square root of 97448621 is about 9871.6068094308. The cubic root of 97448621 is about 460.1773434034.

The spelling of 97448621 in words is "ninety-seven million, four hundred forty-eight thousand, six hundred twenty-one".

Divisors: 1 43 2266247 97448621