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547138020 = 22351113431483
BaseRepresentation
bin100000100111001…
…010100111100100
31102010112111021010
4200213022213210
52110031404040
6130143022220
716362411402
oct4047124744
91363474233
10547138020
11260932990
1213329a970
138947a910
1452946472
1533079e80
hex209ca9e4

547138020 has 192 divisors, whose sum is σ = 1842914304. Its totient is φ = 119508480.

The previous prime is 547138001. The next prime is 547138043. The reversal of 547138020 is 20831745.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 368199 + ... + 369681.

It is an arithmetic number, because the mean of its divisors is an integer number (9598512).

Almost surely, 2547138020 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 547138020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (921457152).

547138020 is an abundant number, since it is smaller than the sum of its proper divisors (1295776284).

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

547138020 is a wasteful number, since it uses less digits than its factorization.

547138020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562 (or 1560 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 547138020 is about 23390.9815954782. The cubic root of 547138020 is about 817.8976583804.

Adding to 547138020 its reverse (20831745), we get a palindrome (567969765).

The spelling of 547138020 in words is "five hundred forty-seven million, one hundred thirty-eight thousand, twenty".