Search a number
-
+
461240978 = 211145114449
BaseRepresentation
bin11011011111011…
…111101010010010
31012010220110200012
4123133133222102
51421034202403
6113433554522
714300324612
oct3337375222
91163813605
10461240978
112173a41a0
1210a575a42
1374734373
1445386a42
152a75ded8
hex1b7dfa92

461240978 has 16 divisors (see below), whose sum is σ = 755330400. Its totient is φ = 209496000.

The previous prime is 461240977. The next prime is 461241007. The reversal of 461240978 is 879042164.

It is not an unprimeable number, because it can be changed into a prime (461240977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24698 + ... + 39146.

It is an arithmetic number, because the mean of its divisors is an integer number (47208150).

Almost surely, 2461240978 is an apocalyptic number.

461240978 is a deficient number, since it is larger than the sum of its proper divisors (294089422).

461240978 is a wasteful number, since it uses less digits than its factorization.

461240978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15913.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 461240978 is about 21476.5215526165. The cubic root of 461240978 is about 772.6378177742.

The spelling of 461240978 in words is "four hundred sixty-one million, two hundred forty thousand, nine hundred seventy-eight".

Divisors: 1 2 11 22 1451 2902 14449 15961 28898 31922 158939 317878 20965499 41930998 230620489 461240978