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4990755 = 3571129149
BaseRepresentation
bin10011000010011100100011
3100101120000210
4103002130203
52234201010
6254545203
760264210
oct23023443
910346023
104990755
1128a96a0
121808203
131059813
1493cb07
15688b20
hex4c2723

4990755 has 64 divisors (see below), whose sum is σ = 10368000. Its totient is φ = 1989120.

The previous prime is 4990753. The next prime is 4990759. The reversal of 4990755 is 5570994.

It is a Cunningham number, because it is equal to 22342-1.

It is not a de Polignac number, because 4990755 - 21 = 4990753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4990753) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33421 + ... + 33569.

It is an arithmetic number, because the mean of its divisors is an integer number (162000).

Almost surely, 24990755 is an apocalyptic number.

4990755 is an abundant number, since it is smaller than the sum of its proper divisors (5377245).

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

4990755 is a wasteful number, since it uses less digits than its factorization.

4990755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204.

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 4990755 is about 2233.9997761862. Note that the first 3 decimals coincide. The cubic root of 4990755 is about 170.8921381270.

The spelling of 4990755 in words is "four million, nine hundred ninety thousand, seven hundred fifty-five".

Divisors: 1 3 5 7 11 15 21 29 33 35 55 77 87 105 145 149 165 203 231 319 385 435 447 609 745 957 1015 1043 1155 1595 1639 2233 2235 3045 3129 4321 4785 4917 5215 6699 8195 11165 11473 12963 15645 21605 24585 30247 33495 34419 47531 57365 64815 90741 142593 151235 172095 237655 332717 453705 712965 998151 1663585 4990755