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90474901 = 11172112293
BaseRepresentation
bin1010110010010…
…00100110010101
320022020121020021
411121020212111
5141130144101
612551105141
72146011136
oct531104625
9208217207
1090474901
1147086150
12263721b1
131598a15a
14c031c8d
157e225a1
hex5648995

90474901 has 16 divisors (see below), whose sum is σ = 105046848. Its totient is φ = 77011200.

The previous prime is 90474889. The next prime is 90474911. The reversal of 90474901 is 10947409.

It is a cyclic number.

It is not a de Polignac number, because 90474901 - 211 = 90472853 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 (90474911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38311 + ... + 40603.

It is an arithmetic number, because the mean of its divisors is an integer number (6565428).

Almost surely, 290474901 is an apocalyptic number.

It is an amenable number.

90474901 is a deficient number, since it is larger than the sum of its proper divisors (14571947).

90474901 is a wasteful number, since it uses less digits than its factorization.

90474901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 90474901 is about 9511.8295295910. The cubic root of 90474901 is about 448.9273232534.

The spelling of 90474901 in words is "ninety million, four hundred seventy-four thousand, nine hundred one".

Divisors: 1 11 17 187 211 2293 2321 3587 25223 38981 39457 428791 483823 5322053 8224991 90474901