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4857051890 = 251925563431
BaseRepresentation
bin1001000011000000…
…01011101011110010
3110112111101210121202
410201200023223302
534421401130030
62121543251202
7231235155065
oct44140135362
913474353552
104857051890
112072751a79
12b36749b02
135c535b702
143410d08dc
151d661b745
hex12180baf2

4857051890 has 16 divisors (see below), whose sum is σ = 9202835520. Its totient is φ = 1840566960.

The previous prime is 4857051869. The next prime is 4857051893. The reversal of 4857051890 is 981507584.

It is not an unprimeable number, because it can be changed into a prime (4857051893) 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, 12781526 + ... + 12781905.

It is an arithmetic number, because the mean of its divisors is an integer number (575177220).

Almost surely, 24857051890 is an apocalyptic number.

4857051890 is a deficient number, since it is larger than the sum of its proper divisors (4345783630).

4857051890 is a wasteful number, since it uses less digits than its factorization.

4857051890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25563457.

The product of its (nonzero) digits is 403200, while the sum is 47.

The square root of 4857051890 is about 69692.5526150391. The cubic root of 4857051890 is about 1693.5222792844.

The spelling of 4857051890 in words is "four billion, eight hundred fifty-seven million, fifty-one thousand, eight hundred ninety".

Divisors: 1 2 5 10 19 38 95 190 25563431 51126862 127817155 255634310 485705189 971410378 2428525945 4857051890