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49994748 = 22321388743
BaseRepresentation
bin1011111010110…
…1101111111100
310111001222220100
42332231233330
5100244312443
64543321100
71144643166
oct276555774
9114058810
1049994748
1126247881
12148b0190
13a485bbb
1468d5936
1545c83d3
hex2fadbfc

49994748 has 18 divisors (see below), whose sum is σ = 126375704. Its totient is φ = 16664904.

The previous prime is 49994731. The next prime is 49994759. The reversal of 49994748 is 84749994.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 49994694 and 49994703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 694336 + ... + 694407.

Almost surely, 249994748 is an apocalyptic number.

It is an amenable number.

49994748 is an abundant number, since it is smaller than the sum of its proper divisors (76380956).

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

49994748 is a wasteful number, since it uses less digits than its factorization.

49994748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388753 (or 1388748 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 49994748 is about 7070.6964296312. The cubic root of 49994748 is about 368.3902503901.

The spelling of 49994748 in words is "forty-nine million, nine hundred ninety-four thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 1388743 2777486 4166229 5554972 8332458 12498687 16664916 24997374 49994748