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97391401 = 671453603
BaseRepresentation
bin1011100111000…
…01001100101001
320210020222212221
411303201030221
5144413011101
613355234041
72261545642
oct563411451
9223228787
1097391401
114aa7a668
1228748921
131723c363
14cd126c9
15883baa1
hex5ce1329

97391401 has 4 divisors (see below), whose sum is σ = 98845072. Its totient is φ = 95937732.

The previous prime is 97391389. The next prime is 97391443. The reversal of 97391401 is 10419379.

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: 10419379 = 31336109.

It is a cyclic number.

It is not a de Polignac number, because 97391401 - 217 = 97260329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97391461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726735 + ... + 726868.

It is an arithmetic number, because the mean of its divisors is an integer number (24711268).

Almost surely, 297391401 is an apocalyptic number.

It is an amenable number.

97391401 is a deficient number, since it is larger than the sum of its proper divisors (1453671).

97391401 is a wasteful number, since it uses less digits than its factorization.

97391401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453670.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 97391401 is about 9868.7081728056. The cubic root of 97391401 is about 460.0872566043.

The spelling of 97391401 in words is "ninety-seven million, three hundred ninety-one thousand, four hundred one".

Divisors: 1 67 1453603 97391401