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49720790 = 2572293499
BaseRepresentation
bin1011110110101…
…0110111010110
310110120002002202
42331222313112
5100212031130
64533404502
71142422400
oct275526726
9113502082
1049720790
112607aa69
1214799732
13a3bb2b2
146863b70
154572145
hex2f6add6

49720790 has 48 divisors (see below), whose sum is σ = 107730000. Its totient is φ = 16454592.

The previous prime is 49720789. The next prime is 49720831. The reversal of 49720790 is 9702794.

It is a happy number.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 12461 + ... + 15959.

It is an arithmetic number, because the mean of its divisors is an integer number (2244375).

Almost surely, 249720790 is an apocalyptic number.

49720790 is an abundant number, since it is smaller than the sum of its proper divisors (58009210).

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

49720790 is a wasteful number, since it uses less digits than its factorization.

49720790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3549 (or 3542 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 49720790 is about 7051.2970438069. The cubic root of 49720790 is about 367.7161238192.

The spelling of 49720790 in words is "forty-nine million, seven hundred twenty thousand, seven hundred ninety".

Divisors: 1 2 5 7 10 14 29 35 49 58 70 98 145 203 245 290 406 490 1015 1421 2030 2842 3499 6998 7105 14210 17495 24493 34990 48986 101471 122465 171451 202942 244930 342902 507355 710297 857255 1014710 1420594 1714510 3551485 4972079 7102970 9944158 24860395 49720790