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90148433 = 176779147
BaseRepresentation
bin1010101111110…
…00111001010001
320021122000101212
411113320321101
5141034222213
612540105505
72143151264
oct527707121
9207560355
1090148433
1146982941
1226235295
13158a468b
14bd88cdb
157daa9a8
hex55f8e51

90148433 has 8 divisors (see below), whose sum is σ = 96877152. Its totient is φ = 83578176.

The previous prime is 90148417. The next prime is 90148441. The reversal of 90148433 is 33484109.

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 90148433 - 24 = 90148417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90148433.

It is not an unprimeable number, because it can be changed into a prime (90148493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38435 + ... + 40712.

It is an arithmetic number, because the mean of its divisors is an integer number (12109644).

Almost surely, 290148433 is an apocalyptic number.

It is an amenable number.

90148433 is a deficient number, since it is larger than the sum of its proper divisors (6728719).

90148433 is a wasteful number, since it uses less digits than its factorization.

90148433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79231.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 90148433 is about 9494.6528635859. The cubic root of 90148433 is about 448.3867053953.

The spelling of 90148433 in words is "ninety million, one hundred forty-eight thousand, four hundred thirty-three".

Divisors: 1 17 67 1139 79147 1345499 5302849 90148433