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90145262467 = 1325801268759
BaseRepresentation
bin101001111110100010…
…0111000101110000011
322121200101012210202201
41103331010320232003
52434104141344332
6105225005454031
76340612042201
oct1237504705603
9277611183681
1090145262467
1135259717a17
1215579571317
138667c529c0
144512312071
152528ec25e7
hex14fd138b83

90145262467 has 8 divisors (see below), whose sum is σ = 97083637280. Its totient is φ = 83207476800.

The previous prime is 90145262461. The next prime is 90145262489. The reversal of 90145262467 is 76426254109.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90145262467 - 219 = 90144738179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90145262461) 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 7 ways as a sum of consecutive naturals, for example, 201034 + ... + 469792.

It is an arithmetic number, because the mean of its divisors is an integer number (12135454660).

Almost surely, 290145262467 is an apocalyptic number.

90145262467 is a deficient number, since it is larger than the sum of its proper divisors (6938374813).

90145262467 is a wasteful number, since it uses less digits than its factorization.

90145262467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294573.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 90145262467 in words is "ninety billion, one hundred forty-five million, two hundred sixty-two thousand, four hundred sixty-seven".

Divisors: 1 13 25801 268759 335413 3493867 6934250959 90145262467