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54351020 = 22519281509
BaseRepresentation
bin1100111101010…
…1010010101100
310210021022120202
43033111102230
5102403213040
65220533032
71226655533
oct317252254
9123238522
1054351020
11287527a9
1216251178
13b34c989
14730b31a
154b89015
hex33d54ac

54351020 has 48 divisors (see below), whose sum is σ = 120808800. Its totient is φ = 20482560.

The previous prime is 54351019. The next prime is 54351041. The reversal of 54351020 is 2015345.

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

It is a junction number, because it is equal to n+sod(n) for n = 54350983 and 54351001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106526 + ... + 107034.

It is an arithmetic number, because the mean of its divisors is an integer number (2516850).

Almost surely, 254351020 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 54351020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60404400).

54351020 is an abundant number, since it is smaller than the sum of its proper divisors (66457780).

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

54351020 is a wasteful number, since it uses less digits than its factorization.

54351020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 54351020 is about 7372.3144262843. The cubic root of 54351020 is about 378.7935421046.

Adding to 54351020 its reverse (2015345), we get a palindrome (56366365).

The spelling of 54351020 in words is "fifty-four million, three hundred fifty-one thousand, twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 281 380 509 562 1018 1124 1405 2036 2545 2810 5090 5339 5620 9671 10180 10678 19342 21356 26695 38684 48355 53390 96710 106780 143029 193420 286058 572116 715145 1430290 2717551 2860580 5435102 10870204 13587755 27175510 54351020