Search a number
75151152 = 243617379
BaseRepresentation
bin1000111101010…
…11011100110000
312020102002000000
410132223130300
5123214314102
611242430000
71601526366
oct436533460
9166362000
1075151152
113946a19a
1221202300
131275334b
149da3636
1568e701c
hex47ab730

75151152 has 140 divisors (see below), whose sum is σ = 231759720. Its totient is φ = 23514624.

The previous prime is 75151147. The next prime is 75151177. The reversal of 75151152 is 25115157.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 198099 + ... + 198477.

Almost surely, 275151152 is an apocalyptic number.

75151152 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 75151152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115879860).

75151152 is an abundant number, since it is smaller than the sum of its proper divisors (156608568).

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

75151152 is a wasteful number, since it uses less digits than its factorization.

75151152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 401 counting only the distinct ones).

The product of its digits is 1750, while the sum is 27.

The square root of 75151152 is about 8668.9764101652. The cubic root of 75151152 is about 421.9994459536. Note that the first 3 decimals are identical.

The spelling of 75151152 in words is "seventy-five million, one hundred fifty-one thousand, one hundred fifty-two".