Search a number
-
+
80949238216 = 237111069122929
BaseRepresentation
bin100101101100011110…
…0110101100111001000
321201221111021101000221
41023120330311213020
52311241001110331
6101104303035424
75563666112650
oct1133074654710
9251844241027
1080949238216
113136a809880
121383189bb74
1378309aac32
143cbcc71360
15218b9c4711
hex12d8f359c8

80949238216 has 64 divisors (see below), whose sum is σ = 189410544000. Its totient is φ = 31508904960.

The previous prime is 80949238211. The next prime is 80949238217. The reversal of 80949238216 is 61283294908.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (80949238211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 597040 + ... + 719968.

It is an arithmetic number, because the mean of its divisors is an integer number (2959539750).

Almost surely, 280949238216 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 80949238216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94705272000).

80949238216 is an abundant number, since it is smaller than the sum of its proper divisors (108461305784).

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

80949238216 is a wasteful number, since it uses less digits than its factorization.

80949238216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124022 (or 124018 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 80949238216 in words is "eighty billion, nine hundred forty-nine million, two hundred thirty-eight thousand, two hundred sixteen".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 1069 2138 4276 7483 8552 11759 14966 23518 29932 47036 59864 82313 94072 122929 164626 245858 329252 491716 658504 860503 983432 1352219 1721006 2704438 3442012 5408876 6884024 9465533 10817752 18931066 37862132 75724264 131411101 262822202 525644404 919877707 1051288808 1445522111 1839755414 2891044222 3679510828 5782088444 7359021656 10118654777 11564176888 20237309554 40474619108 80949238216