Search a number
-
+
490156312 = 232341431511
BaseRepresentation
bin11101001101110…
…011000100011000
31021011022112001111
4131031303010120
52000440000222
6120345430104
715101155102
oct3515630430
91234275044
10490156312
11231753768
1211819b334
137a719729
1449152572
152d071777
hex1d373118

490156312 has 64 divisors (see below), whose sum is σ = 1005903360. Its totient is φ = 223238400.

The previous prime is 490156267. The next prime is 490156313. The reversal of 490156312 is 213651094.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490156313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323637 + ... + 325147.

It is an arithmetic number, because the mean of its divisors is an integer number (15717240).

Almost surely, 2490156312 is an apocalyptic number.

It is an amenable number.

490156312 is an abundant number, since it is smaller than the sum of its proper divisors (515747048).

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

490156312 is a wasteful number, since it uses less digits than its factorization.

490156312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624 (or 1620 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 490156312 is about 22139.4740678274. The cubic root of 490156312 is about 788.4573388544.

The spelling of 490156312 in words is "four hundred ninety million, one hundred fifty-six thousand, three hundred twelve".

Divisors: 1 2 4 8 23 41 43 46 82 86 92 164 172 184 328 344 943 989 1511 1763 1886 1978 3022 3526 3772 3956 6044 7052 7544 7912 12088 14104 34753 40549 61951 64973 69506 81098 123902 129946 139012 162196 247804 259892 278024 324392 495608 519784 1424873 1494379 2663893 2849746 2988758 5327786 5699492 5977516 10655572 11398984 11955032 21311144 61269539 122539078 245078156 490156312