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90480001 = 175322353
BaseRepresentation
bin1010110010010…
…01110110000001
320022020212020011
411121021312001
5141130330001
612551144521
72146032043
oct531116601
9208225204
1090480001
1147089a67
1226375141
131598c581
14c033a93
157e23d51
hex5649d81

90480001 has 4 divisors (see below), whose sum is σ = 95802372. Its totient is φ = 85157632.

The previous prime is 90479969. The next prime is 90480023. The reversal of 90480001 is 10008409.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33628401 + 56851600 = 5799^2 + 7540^2 .

It is a cyclic number.

It is not a de Polignac number, because 90480001 - 25 = 90479969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90480301) 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, 2661160 + ... + 2661193.

It is an arithmetic number, because the mean of its divisors is an integer number (23950593).

Almost surely, 290480001 is an apocalyptic number.

It is an amenable number.

90480001 is a deficient number, since it is larger than the sum of its proper divisors (5322371).

90480001 is a wasteful number, since it uses less digits than its factorization.

90480001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5322370.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 90480001 is about 9512.0976130399. The cubic root of 90480001 is about 448.9357583233.

The spelling of 90480001 in words is "ninety million, four hundred eighty thousand, one".

Divisors: 1 17 5322353 90480001