Search a number
-
+
80219384 = 2371432489
BaseRepresentation
bin1001100100000…
…00110011111000
312120221120022022
410302000303320
5131014010014
611543214012
71662565520
oct462006370
9176846268
1080219384
1141311013
1222a47308
13138091bb
14a922680
157098a8e
hex4c80cf8

80219384 has 16 divisors (see below), whose sum is σ = 171898800. Its totient is φ = 34379712.

The previous prime is 80219383. The next prime is 80219401. The reversal of 80219384 is 48391208.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80219383) 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 3 ways as a sum of consecutive naturals, for example, 716189 + ... + 716300.

It is an arithmetic number, because the mean of its divisors is an integer number (10743675).

Almost surely, 280219384 is an apocalyptic number.

It is an amenable number.

80219384 is an abundant number, since it is smaller than the sum of its proper divisors (91679416).

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

80219384 is a wasteful number, since it uses less digits than its factorization.

80219384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432502 (or 1432498 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 80219384 is about 8956.5274520877. The cubic root of 80219384 is about 431.2804522639.

Adding to 80219384 its product of nonzero digits (13824), we get a palindrome (80233208).

The spelling of 80219384 in words is "eighty million, two hundred nineteen thousand, three hundred eighty-four".

Divisors: 1 2 4 7 8 14 28 56 1432489 2864978 5729956 10027423 11459912 20054846 40109692 80219384