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54450030 = 2351815001
BaseRepresentation
bin1100111110110…
…1011101101110
310210110100101210
43033231131232
5102414400110
65223015250
71230550305
oct317553556
9123410353
1054450030
1128810128
121629a526
13b385a6b
14733543c
154ba8520
hex33ed76e

54450030 has 16 divisors (see below), whose sum is σ = 130680144. Its totient is φ = 14520000.

The previous prime is 54450013. The next prime is 54450037. The reversal of 54450030 is 3005445.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 54449979 and 54450006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54450037) 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, 907471 + ... + 907530.

It is an arithmetic number, because the mean of its divisors is an integer number (8167509).

Almost surely, 254450030 is an apocalyptic number.

54450030 is an abundant number, since it is smaller than the sum of its proper divisors (76230114).

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

54450030 is a wasteful number, since it uses less digits than its factorization.

54450030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815011.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 54450030 is about 7379.0263585381. The cubic root of 54450030 is about 379.0234157299.

Adding to 54450030 its reverse (3005445), we get a palindrome (57455475).

The spelling of 54450030 in words is "fifty-four million, four hundred fifty thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 1815001 3630002 5445003 9075005 10890006 18150010 27225015 54450030