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49206890 = 2523213943
BaseRepresentation
bin1011101110110…
…1011001101010
310102120222011102
42323231121222
5100044110030
64514401402
71135152215
oct273553152
9112528142
1049206890
1125859957
1214590262
13a26b405
14676c77c
1544bec45
hex2eed66a

49206890 has 16 divisors (see below), whose sum is σ = 92423808. Its totient is φ = 18826896.

The previous prime is 49206869. The next prime is 49206893. The reversal of 49206890 is 9860294.

It is not an unprimeable number, because it can be changed into a prime (49206893) 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, 106742 + ... + 107201.

It is an arithmetic number, because the mean of its divisors is an integer number (5776488).

Almost surely, 249206890 is an apocalyptic number.

49206890 is a deficient number, since it is larger than the sum of its proper divisors (43216918).

49206890 is a wasteful number, since it uses less digits than its factorization.

49206890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213973.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 49206890 is about 7014.7622910545. The cubic root of 49206890 is about 366.4448640185. Note that the first 3 decimals are identical.

The spelling of 49206890 in words is "forty-nine million, two hundred six thousand, eight hundred ninety".

Divisors: 1 2 5 10 23 46 115 230 213943 427886 1069715 2139430 4920689 9841378 24603445 49206890