Search a number
-
+
283157100 = 2233521731199
BaseRepresentation
bin10000111000001…
…010001001101100
3201201210212112000
4100320022021230
51034442011400
644033012300
710005536622
oct2070121154
9651725460
10283157100
11135920136
127a9b4090
13468816a5
142986b512
1519cd3600
hex10e0a26c

283157100 has 288 divisors, whose sum is σ = 999936000. Its totient is φ = 68428800.

The previous prime is 283157099. The next prime is 283157113. The reversal of 283157100 is 1751382.

283157100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1422801 + ... + 1422999.

It is an arithmetic number, because the mean of its divisors is an integer number (3472000).

Almost surely, 2283157100 is an apocalyptic number.

283157100 is a gapful number since it is divisible by the number (20) 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 283157100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (499968000).

283157100 is an abundant number, since it is smaller than the sum of its proper divisors (716778900).

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

283157100 is a wasteful number, since it uses less digits than its factorization.

283157100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 283157100 is about 16827.2725062620. The cubic root of 283157100 is about 656.6629074942.

The spelling of 283157100 in words is "two hundred eighty-three million, one hundred fifty-seven thousand, one hundred".