Search a number
-
+
75481068 = 22313483853
BaseRepresentation
bin1000111111110…
…11111111101100
312021000211120010
410133323333230
5123310343233
611253453220
71604402265
oct437737754
9167024503
1075481068
1139675053
1221341210
131283a570
14a04b96c
15695eb63
hex47fbfec

75481068 has 24 divisors (see below), whose sum is σ = 189670768. Its totient is φ = 23224896.

The previous prime is 75481067. The next prime is 75481069. The reversal of 75481068 is 86018457.

It is an interprime number because it is at equal distance from previous prime (75481067) and next prime (75481069).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (75481067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241771 + ... + 242082.

Almost surely, 275481068 is an apocalyptic number.

75481068 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

75481068 is an abundant number, since it is smaller than the sum of its proper divisors (114189700).

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

75481068 is a wasteful number, since it uses less digits than its factorization.

75481068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483873 (or 483871 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 75481068 is about 8687.9841160076. The cubic root of 75481068 is about 422.6160749197.

The spelling of 75481068 in words is "seventy-five million, four hundred eighty-one thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 483853 967706 1451559 1935412 2903118 5806236 6290089 12580178 18870267 25160356 37740534 75481068