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490028392 = 237194147239
BaseRepresentation
bin11101001101010…
…011110101101000
31021011002000120201
4131031103311220
52000421402032
6120343001544
715100113130
oct3515236550
91234060521
10490028392
11231676647
121181392b4
137a6a3439
144911bac0
152d0488e7
hex1d353d68

490028392 has 128 divisors (see below), whose sum is σ = 1161216000. Its totient is φ = 189181440.

The previous prime is 490028381. The next prime is 490028443. The reversal of 490028392 is 293820094.

It is a super-2 number, since 2×4900283922 = 480255649932211328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2050209 + ... + 2050447.

It is an arithmetic number, because the mean of its divisors is an integer number (9072000).

Almost surely, 2490028392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 490028392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (580608000).

490028392 is an abundant number, since it is smaller than the sum of its proper divisors (671187608).

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

490028392 is a wasteful number, since it uses less digits than its factorization.

490028392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 490028392 is about 22136.5849217986. The cubic root of 490028392 is about 788.3887428878.

The spelling of 490028392 in words is "four hundred ninety million, twenty-eight thousand, three hundred ninety-two".

Divisors: 1 2 4 7 8 14 19 28 38 41 47 56 76 82 94 133 152 164 188 239 266 287 328 329 376 478 532 574 658 779 893 956 1064 1148 1316 1558 1673 1786 1912 1927 2296 2632 3116 3346 3572 3854 4541 5453 6232 6251 6692 7144 7708 9082 9799 10906 11233 12502 13384 13489 15416 18164 19598 21812 22466 25004 26978 31787 36328 36613 39196 43624 44932 50008 53956 63574 68593 73226 78392 78631 89864 107912 127148 137186 146452 157262 186181 213427 254296 256291 274372 292904 314524 372362 426854 460553 512582 548744 629048 744724 853708 921106 1025164 1303267 1489448 1493989 1707416 1842212 2050328 2606534 2987978 3223871 3684424 5213068 5975956 6447742 8750507 10426136 11951912 12895484 17501014 25790968 35002028 61253549 70004056 122507098 245014196 490028392