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55454412 = 223133111467
BaseRepresentation
bin1101001110001…
…0101011001100
310212100101011010
43103202223030
5103144020122
65300325220
71242232446
oct323425314
9125311133
1055454412
11293367a2
12166a3810
13b647c80
147517496
154d05e0c
hex34e2acc

55454412 has 48 divisors (see below), whose sum is σ = 143854592. Its totient is φ = 16511040.

The previous prime is 55454401. The next prime is 55454419. The reversal of 55454412 is 21445455.

55454412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55454412.

It is not an unprimeable number, because it can be changed into a prime (55454419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 898 + ... + 10569.

Almost surely, 255454412 is an apocalyptic number.

55454412 is a gapful number since it is divisible by the number (52) 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 55454412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71927296).

55454412 is an abundant number, since it is smaller than the sum of its proper divisors (88400180).

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

55454412 is a wasteful number, since it uses less digits than its factorization.

55454412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11518 (or 11516 counting only the distinct ones).

The product of its digits is 16000, while the sum is 30.

The square root of 55454412 is about 7446.7719180864. The cubic root of 55454412 is about 381.3397125796.

Adding to 55454412 its reverse (21445455), we get a palindrome (76899867).

The spelling of 55454412 in words is "fifty-five million, four hundred fifty-four thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 31 39 52 62 78 93 124 156 186 372 403 806 1209 1612 2418 4836 11467 22934 34401 45868 68802 137604 149071 298142 355477 447213 596284 710954 894426 1066431 1421908 1788852 2132862 4265724 4621201 9242402 13863603 18484804 27727206 55454412