Search a number
-
+
54872280 = 23325152423
BaseRepresentation
bin1101000101010…
…0100011011000
310211020210121200
43101110203120
5103021403110
65240034200
71234256331
oct321244330
9124223550
1054872280
1128a793a1
1216462960
13b4a3008
147405288
154c3d6c0
hex34548d8

54872280 has 48 divisors (see below), whose sum is σ = 178336080. Its totient is φ = 14632512.

The previous prime is 54872261. The next prime is 54872281. The reversal of 54872280 is 8227845.

It is a happy number.

It is a super-2 number, since 2×548722802 = 6021934224796800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54872281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75852 + ... + 76571.

It is an arithmetic number, because the mean of its divisors is an integer number (3715335).

Almost surely, 254872280 is an apocalyptic number.

It is an amenable number.

54872280 is an abundant number, since it is smaller than the sum of its proper divisors (123463800).

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

54872280 is a wasteful number, since it uses less digits than its factorization.

54872280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152440 (or 152433 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 54872280 is about 7407.5826016319. The cubic root of 54872280 is about 380.0006463516. Note that the first 3 decimals are identical.

The spelling of 54872280 in words is "fifty-four million, eight hundred seventy-two thousand, two hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 152423 304846 457269 609692 762115 914538 1219384 1371807 1524230 1829076 2286345 2743614 3048460 3658152 4572690 5487228 6096920 6859035 9145380 10974456 13718070 18290760 27436140 54872280