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198050490 = 2325111910529
BaseRepresentation
bin10111100111000…
…00001010111010
3111210200000012100
423303200022322
5401200103430
631352524230
74623254451
oct1363401272
9453600170
10198050490
11a18812a0
12563b0676
1332053b51
141c435b98
15125c1960
hexbce02ba

198050490 has 96 divisors (see below), whose sum is σ = 591364800. Its totient is φ = 45480960.

The previous prime is 198050441. The next prime is 198050491. The reversal of 198050490 is 94050891.

198050490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (198050491) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13546 + ... + 24074.

It is an arithmetic number, because the mean of its divisors is an integer number (6160050).

Almost surely, 2198050490 is an apocalyptic number.

198050490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 198050490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295682400).

198050490 is an abundant number, since it is smaller than the sum of its proper divisors (393314310).

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

198050490 is a wasteful number, since it uses less digits than its factorization.

198050490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10572 (or 10569 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 198050490 is about 14073.0412491401. The cubic root of 198050490 is about 582.8972061665.

The spelling of 198050490 in words is "one hundred ninety-eight million, fifty thousand, four hundred ninety".

Divisors: 1 2 3 5 6 9 10 11 15 18 19 22 30 33 38 45 55 57 66 90 95 99 110 114 165 171 190 198 209 285 330 342 418 495 570 627 855 990 1045 1254 1710 1881 2090 3135 3762 6270 9405 10529 18810 21058 31587 52645 63174 94761 105290 115819 157935 189522 200051 231638 315870 347457 400102 473805 579095 600153 694914 947610 1000255 1042371 1158190 1200306 1737285 1800459 2000510 2084742 2200561 3000765 3474570 3600918 4401122 5211855 6001530 6601683 9002295 10423710 11002805 13203366 18004590 19805049 22005610 33008415 39610098 66016830 99025245 198050490