Search a number
-
+
1841478480 = 2432519227593
BaseRepresentation
bin110110111000010…
…1011101101010000
311202100001210120200
41231300223231100
512232404302410
6502421135200
763430210632
oct15560535520
94670053520
101841478480
11865515046
1243485a500
1323468384a
141367d2a52
15ab9ed3c0
hex6dc2bb50

1841478480 has 240 divisors, whose sum is σ = 6549491520. Its totient is φ = 462385152.

The previous prime is 1841478467. The next prime is 1841478521. The reversal of 1841478480 is 848741481.

It is a happy number.

1841478480 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×18414784802 = 6782085984606220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3105064 + ... + 3105656.

It is an arithmetic number, because the mean of its divisors is an integer number (27289548).

Almost surely, 21841478480 is an apocalyptic number.

1841478480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1841478480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3274745760).

1841478480 is an abundant number, since it is smaller than the sum of its proper divisors (4708013040).

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

1841478480 is a wasteful number, since it uses less digits than its factorization.

1841478480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 45.

The square root of 1841478480 is about 42912.4513399083. The cubic root of 1841478480 is about 1225.7132550425.

The spelling of 1841478480 in words is "one billion, eight hundred forty-one million, four hundred seventy-eight thousand, four hundred eighty".