Search a number
-
+
80738380800 = 21033527113741
BaseRepresentation
bin100101100110001100…
…0011110110000000000
321201101210111201001000
41023030120132300000
52310323011141200
6101031331412000
75555525625210
oct1131430366000
9251353451030
1080738380800
1131271790550
1213793154000
1377c90c1a2c
143c9cc64240
152178223300
hex12cc61ec00

80738380800 has 2112 divisors, whose sum is σ = 388905108480. Its totient is φ = 15925248000.

The previous prime is 80738380787. The next prime is 80738380817. The reversal of 80738380800 is 808383708.

It is a tau number, because it is divible by the number of its divisors (2112).

It is a super-2 number, since 2×807383808002 (a number of 23 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1969228780 + ... + 1969228820.

Almost surely, 280738380800 is an apocalyptic number.

80738380800 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 80738380800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194452554240).

80738380800 is an abundant number, since it is smaller than the sum of its proper divisors (308166727680).

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

80738380800 is a wasteful number, since it uses less digits than its factorization.

80738380800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 80738380800 in words is "eighty billion, seven hundred thirty-eight million, three hundred eighty thousand, eight hundred".