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54330140 = 22523831423
BaseRepresentation
bin1100111101000…
…0001100011100
310210020020221102
43033100030130
5102402031030
65220252232
71226540624
oct317201434
9123206842
1054330140
1128739047
1216241078
13b343317
147303884
154b82c45
hex33d031c

54330140 has 48 divisors (see below), whose sum is σ = 120572928. Its totient is φ = 20522304.

The previous prime is 54330127. The next prime is 54330149. The reversal of 54330140 is 4103345.

It is a super-2 number, since 2×543301402 = 5903528224839200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54330149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37469 + ... + 38891.

It is an arithmetic number, because the mean of its divisors is an integer number (2511936).

Almost surely, 254330140 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 54330140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60286464).

54330140 is an abundant number, since it is smaller than the sum of its proper divisors (66242788).

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

54330140 is a wasteful number, since it uses less digits than its factorization.

54330140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538 (or 1536 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 54330140 is about 7370.8981813616. The cubic root of 54330140 is about 378.7450289261.

Adding to 54330140 its reverse (4103345), we get a palindrome (58433485).

The spelling of 54330140 in words is "fifty-four million, three hundred thirty thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 23 46 83 92 115 166 230 332 415 460 830 1423 1660 1909 2846 3818 5692 7115 7636 9545 14230 19090 28460 32729 38180 65458 118109 130916 163645 236218 327290 472436 590545 654580 1181090 2362180 2716507 5433014 10866028 13582535 27165070 54330140