Search a number
-
+
83872124 = 2272427919
BaseRepresentation
bin1001111111111…
…00100101111100
312211211010220222
410333330211330
5132432401444
612153400512
72035621100
oct477744574
9184733828
1083872124
1143386406
1224109138
13144b799b
14b1d3900
15756aeee
hex4ffc97c

83872124 has 18 divisors (see below), whose sum is σ = 170740080. Its totient is φ = 35945112.

The previous prime is 83872079. The next prime is 83872127. The reversal of 83872124 is 42127838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83872127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 213764 + ... + 214155.

It is an arithmetic number, because the mean of its divisors is an integer number (9485560).

Almost surely, 283872124 is an apocalyptic number.

It is an amenable number.

83872124 is an abundant number, since it is smaller than the sum of its proper divisors (86867956).

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

83872124 is a wasteful number, since it uses less digits than its factorization.

83872124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427937 (or 427928 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 83872124 is about 9158.1725251275. The cubic root of 83872124 is about 437.7295648551.

The spelling of 83872124 in words is "eighty-three million, eight hundred seventy-two thousand, one hundred twenty-four".

Divisors: 1 2 4 7 14 28 49 98 196 427919 855838 1711676 2995433 5990866 11981732 20968031 41936062 83872124