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90054448 = 24113713829
BaseRepresentation
bin1010101111000…
…01111100110000
320021110020110221
411113201330300
5141023220243
612534102424
72142310261
oct527417460
9207406427
1090054448
1146919270
12261aaa14
1315870973
14bd62968
157d8cbed
hex55e1f30

90054448 has 40 divisors (see below), whose sum is σ = 195500880. Its totient is φ = 39824640.

The previous prime is 90054443. The next prime is 90054451. The reversal of 90054448 is 84445009.

It is not an unprimeable number, because it can be changed into a prime (90054443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403 + ... + 13426.

It is an arithmetic number, because the mean of its divisors is an integer number (4887522).

Almost surely, 290054448 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 90054448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97750440).

90054448 is an abundant number, since it is smaller than the sum of its proper divisors (105446432).

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

90054448 is a wasteful number, since it uses less digits than its factorization.

90054448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13885 (or 13879 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 90054448 is about 9489.7022081834. The cubic root of 90054448 is about 448.2308281137.

The spelling of 90054448 in words is "ninety million, fifty-four thousand, four hundred forty-eight".

Divisors: 1 2 4 8 11 16 22 37 44 74 88 148 176 296 407 592 814 1628 3256 6512 13829 27658 55316 110632 152119 221264 304238 511673 608476 1023346 1216952 2046692 2433904 4093384 5628403 8186768 11256806 22513612 45027224 90054448