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49680906 = 231136221
BaseRepresentation
bin1011110110000…
…1001000001010
310110111001101120
42331201020022
5100204242111
64532500110
71142165202
oct275411012
9113431346
1049680906
1126053000
121477a636
13a3a60b2
146853402
154565406
hex2f6120a

49680906 has 32 divisors (see below), whose sum is σ = 109308096. Its totient is φ = 15052400.

The previous prime is 49680887. The next prime is 49680907. The reversal of 49680906 is 60908694.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (49680907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4876 + ... + 11096.

It is an arithmetic number, because the mean of its divisors is an integer number (3415878).

Almost surely, 249680906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49680906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54654048).

49680906 is an abundant number, since it is smaller than the sum of its proper divisors (59627190).

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

49680906 is a wasteful number, since it uses less digits than its factorization.

49680906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6259 (or 6237 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 49680906 is about 7048.4683442575. The cubic root of 49680906 is about 367.6177752001.

The spelling of 49680906 in words is "forty-nine million, six hundred eighty thousand, nine hundred six".

Divisors: 1 2 3 6 11 22 33 66 121 242 363 726 1331 2662 3993 6221 7986 12442 18663 37326 68431 136862 205293 410586 752741 1505482 2258223 4516446 8280151 16560302 24840453 49680906