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90387360 = 253357361
BaseRepresentation
bin1010110001100…
…11001110100000
320022002011011000
411120303032200
5141114343420
612545152000
72145165000
oct530631640
9208064130
1090387360
11470263a8
122632b600
131595935b
14c00c000
157e06690
hex56333a0

90387360 has 384 divisors, whose sum is σ = 374976000. Its totient is φ = 20321280.

The previous prime is 90387347. The next prime is 90387361. The reversal of 90387360 is 6378309.

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

It is not an unprimeable number, because it can be changed into a prime (90387361) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1481730 + ... + 1481790.

It is an arithmetic number, because the mean of its divisors is an integer number (976500).

Almost surely, 290387360 is an apocalyptic number.

90387360 is a gapful number since it is divisible by the number (90) 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 90387360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187488000).

90387360 is an abundant number, since it is smaller than the sum of its proper divisors (284588640).

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

90387360 is a wasteful number, since it uses less digits than its factorization.

90387360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 90387360 is about 9507.2267249709. The cubic root of 90387360 is about 448.7824866625.

The spelling of 90387360 in words is "ninety million, three hundred eighty-seven thousand, three hundred sixty".