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54090030 = 2351803001
BaseRepresentation
bin1100111001010…
…1100100101110
310202210001120110
43032111210232
5102321340110
65211200450
71224520611
oct316254456
9122701513
1054090030
1128594705
1216146126
13b28ac47
147280178
154b36a20
hex339592e

54090030 has 16 divisors (see below), whose sum is σ = 129816144. Its totient is φ = 14424000.

The previous prime is 54090011. The next prime is 54090037. The reversal of 54090030 is 3009045.

It is a junction number, because it is equal to n+sod(n) for n = 54089979 and 54090006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54090037) 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, 901471 + ... + 901530.

It is an arithmetic number, because the mean of its divisors is an integer number (8113509).

Almost surely, 254090030 is an apocalyptic number.

54090030 is an abundant number, since it is smaller than the sum of its proper divisors (75726114).

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

54090030 is a wasteful number, since it uses less digits than its factorization.

54090030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803011.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 54090030 is about 7354.5924428210. The cubic root of 54090030 is about 378.1862551766.

Adding to 54090030 its reverse (3009045), we get a palindrome (57099075).

The spelling of 54090030 in words is "fifty-four million, ninety thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 1803001 3606002 5409003 9015005 10818006 18030010 27045015 54090030