Search a number
-
+
68661024 = 2534316633
BaseRepresentation
bin1000001011110…
…10111100100000
311210012100012220
410011322330200
5120034123044
610451351040
71462415625
oct405727440
9153170186
1068661024
1135837053
121abb2480
13112c0233
14919434c
156064019
hex417af20

68661024 has 48 divisors (see below), whose sum is σ = 184437792. Its totient is φ = 22353408.

The previous prime is 68661017. The next prime is 68661077. The reversal of 68661024 is 42016686.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4189 + ... + 12444.

It is an arithmetic number, because the mean of its divisors is an integer number (3842454).

Almost surely, 268661024 is an apocalyptic number.

It is an amenable number.

68661024 is an abundant number, since it is smaller than the sum of its proper divisors (115776768).

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

68661024 is a wasteful number, since it uses less digits than its factorization.

68661024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16689 (or 16681 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 68661024 is about 8286.1947840972. The cubic root of 68661024 is about 409.4838319041.

The spelling of 68661024 in words is "sixty-eight million, six hundred sixty-one thousand, twenty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 43 48 86 96 129 172 258 344 516 688 1032 1376 2064 4128 16633 33266 49899 66532 99798 133064 199596 266128 399192 532256 715219 798384 1430438 1596768 2145657 2860876 4291314 5721752 8582628 11443504 17165256 22887008 34330512 68661024