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90350845 = 51311312301
BaseRepresentation
bin1010110001010…
…10010011111101
320022000022001121
411120222103331
5141112211340
612544310541
72144653354
oct530522375
9208008047
1090350845
1147000a22
1226312451
1315945850
14bddc99b
157dea94a
hex562a4fd

90350845 has 16 divisors (see below), whose sum is σ = 117803952. Its totient is φ = 66124800.

The previous prime is 90350797. The next prime is 90350857. The reversal of 90350845 is 54805309.

It can be written as a sum of positive squares in 8 ways, for example, as 34609689 + 55741156 = 5883^2 + 7466^2 .

It is not a de Polignac number, because 90350845 - 27 = 90350717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90350845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1195 + ... + 13495.

It is an arithmetic number, because the mean of its divisors is an integer number (7362747).

Almost surely, 290350845 is an apocalyptic number.

It is an amenable number.

90350845 is a deficient number, since it is larger than the sum of its proper divisors (27453107).

90350845 is a wasteful number, since it uses less digits than its factorization.

90350845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12432.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 90350845 is about 9505.3061497250. The cubic root of 90350845 is about 448.7220449528.

The spelling of 90350845 in words is "ninety million, three hundred fifty thousand, eight hundred forty-five".

Divisors: 1 5 13 65 113 565 1469 7345 12301 61505 159913 799565 1390013 6950065 18070169 90350845