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90308006 = 21491791693
BaseRepresentation
bin1010110000111…
…11110110100110
320021221010021222
411120133312212
5141104324011
612543340342
72144414435
oct530376646
9207833258
1090308006
1146a81818
12262b16b2
131592c1b9
14bdcb11c
157ddcddb
hex561fda6

90308006 has 16 divisors (see below), whose sum is σ = 137214000. Its totient is φ = 44574048.

The previous prime is 90307957. The next prime is 90308011. The reversal of 90308006 is 60080309.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52496 + ... + 54188.

It is an arithmetic number, because the mean of its divisors is an integer number (8575875).

Almost surely, 290308006 is an apocalyptic number.

90308006 is a deficient number, since it is larger than the sum of its proper divisors (46905994).

90308006 is a wasteful number, since it uses less digits than its factorization.

90308006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 90308006 is about 9503.0524569740. The cubic root of 90308006 is about 448.6511146345.

The spelling of 90308006 in words is "ninety million, three hundred eight thousand, six".

Divisors: 1 2 149 179 298 358 1693 3386 26671 53342 252257 303047 504514 606094 45154003 90308006