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495322890 = 23579208997
BaseRepresentation
bin11101100001100…
…000011100001010
31021112001000021020
4131201200130022
52003300313030
6121052253310
715163114026
oct3541403412
91245030236
10495322890
11234662467
12119a71236
137b80828a
1449ad9386
152d742510
hex1d86070a

495322890 has 32 divisors (see below), whose sum is σ = 1203828480. Its totient is φ = 130413504.

The previous prime is 495322873. The next prime is 495322901. The reversal of 495322890 is 98223594.

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, 102129 + ... + 106868.

It is an arithmetic number, because the mean of its divisors is an integer number (37619640).

Almost surely, 2495322890 is an apocalyptic number.

495322890 is an abundant number, since it is smaller than the sum of its proper divisors (708505590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

495322890 is a wasteful number, since it uses less digits than its factorization.

495322890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209086.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 495322890 is about 22255.8506914474. The cubic root of 495322890 is about 791.2179525266.

The spelling of 495322890 in words is "four hundred ninety-five million, three hundred twenty-two thousand, eight hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 79 158 237 395 474 790 1185 2370 208997 417994 626991 1044985 1253982 2089970 3134955 6269910 16510763 33021526 49532289 82553815 99064578 165107630 247661445 495322890