Search a number
-
+
80155674473280 = 263571915120392
BaseRepresentation
bin10010001110011010110010…
…100000001111001101000000
3101111210210210202211122110120
4102032122302200033031000
541001232310131121110
6442251001500500240
722612025223242430
oct2216326240171500
9344723722748416
1080155674473280
11235a391564a02a
128ba685924a680
133595855c12773
1415b17abc182c0
1594007679d870
hex48e6b280f340

80155674473280 has 672 divisors, whose sum is σ = 308337275688960. Its totient is φ = 17233614950400.

The previous prime is 80155674473243. The next prime is 80155674473297. The reversal of 80155674473280 is 8237447655108.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 39311266501 + ... + 39311268539.

It is an arithmetic number, because the mean of its divisors is an integer number (458835231680).

Almost surely, 280155674473280 is an apocalyptic number.

80155674473280 is a gapful number since it is divisible by the number (80) 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 80155674473280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154168637844480).

80155674473280 is an abundant number, since it is smaller than the sum of its proper divisors (228181601215680).

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

80155674473280 is a wasteful number, since it uses less digits than its factorization.

80155674473280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4275 (or 2226 counting only the distinct ones).

The product of its (nonzero) digits is 45158400, while the sum is 60.

The spelling of 80155674473280 in words is "eighty trillion, one hundred fifty-five billion, six hundred seventy-four million, four hundred seventy-three thousand, two hundred eighty".