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49457312100 = 223452723532
BaseRepresentation
bin101110000011111000…
…101011000101100100
311201122202122202210000
4232003320223011210
51302242032441400
634415333501300
73400412134200
oct560370530544
9151582582700
1049457312100
1119a7a3aa659
1297031a1830
1348824bc821
142572625b00
151446de8600
hexb83e2b164

49457312100 has 405 divisors, whose sum is σ = 187025748987. Its totient is φ = 11272504320.

The previous prime is 49457312077. The next prime is 49457312111. The reversal of 49457312100 is 121375494.

The square root of 49457312100 is 222390.

It is a perfect power (a square), and thus also a powerful number.

49457312100 is a `hidden beast` number, since 494 + 57 + 3 + 12 + 100 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2707953444 + 46749358656 = 52038^2 + 216216^2 .

It is a tau number, because it is divible by the number of its divisors (405).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 140105524 + ... + 140105876.

Almost surely, 249457312100 is an apocalyptic number.

49457312100 is the 222390-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49457312100

49457312100 is an abundant number, since it is smaller than the sum of its proper divisors (137568436887).

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

49457312100 is a wasteful number, since it uses less digits than its factorization.

49457312100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746 (or 370 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

Multiplying 49457312100 by its sum of digits (36), we get a square (1780463235600 = 13343402).

49457312100 divided by its sum of digits (36) gives a square (1373814225 = 370652).

Adding to 49457312100 its reverse (121375494), we get a palindrome (49578687594).

The spelling of 49457312100 in words is "forty-nine billion, four hundred fifty-seven million, three hundred twelve thousand, one hundred".