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49230990 = 234560779
BaseRepresentation
bin1011101111001…
…1010010001110
310102122012020000
42323303102032
5100100342430
64515105130
71135312404
oct273632216
9112565200
1049230990
1125875a76
12145a21a6
13a279383
146777474
1544c6e60
hex2ef348e

49230990 has 40 divisors (see below), whose sum is σ = 132378840. Its totient is φ = 13128048.

The previous prime is 49230967. The next prime is 49230991. The reversal of 49230990 is 9903294.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49230991) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29580 + ... + 31199.

It is an arithmetic number, because the mean of its divisors is an integer number (3309471).

Almost surely, 249230990 is an apocalyptic number.

49230990 is an abundant number, since it is smaller than the sum of its proper divisors (83147850).

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

49230990 is a wasteful number, since it uses less digits than its factorization.

49230990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60798 (or 60789 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 49230990 is about 7016.4798866668. The cubic root of 49230990 is about 366.5046786762.

The spelling of 49230990 in words is "forty-nine million, two hundred thirty thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 270 405 810 60779 121558 182337 303895 364674 547011 607790 911685 1094022 1641033 1823370 2735055 3282066 4923099 5470110 8205165 9846198 16410330 24615495 49230990