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83485152 = 25322271277
BaseRepresentation
bin1001111100111…
…10000111100000
312211002111002200
410332132013200
5132333011102
612141213200
72032416642
oct476360740
9184074080
1083485152
11431416a3
1223b61200
13143b07ca
14b132892
1574e151c
hex4f9e1e0

83485152 has 72 divisors (see below), whose sum is σ = 238643496. Its totient is φ = 27684096.

The previous prime is 83485141. The next prime is 83485153. The reversal of 83485152 is 25158438.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83485153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64738 + ... + 66014.

It is an arithmetic number, because the mean of its divisors is an integer number (3314493).

Almost surely, 283485152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83485152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119321748).

83485152 is an abundant number, since it is smaller than the sum of its proper divisors (155158344).

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

83485152 is a wasteful number, since it uses less digits than its factorization.

83485152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520 (or 1509 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 83485152 is about 9137.0209587152. The cubic root of 83485152 is about 437.0553230931.

The spelling of 83485152 in words is "eighty-three million, four hundred eighty-five thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 227 288 454 681 908 1277 1362 1816 2043 2554 2724 3632 3831 4086 5108 5448 7264 7662 8172 10216 10896 11493 15324 16344 20432 21792 22986 30648 32688 40864 45972 61296 65376 91944 122592 183888 289879 367776 579758 869637 1159516 1739274 2319032 2608911 3478548 4638064 5217822 6957096 9276128 10435644 13914192 20871288 27828384 41742576 83485152