Search a number
-
+
80848800400 = 2452202122001
BaseRepresentation
bin100101101001011110…
…1101100101010010000
321201200111021121020211
41023102331230222100
52311034243103100
6101050314213504
75561336315224
oct1132275545220
9251614247224
1080848800400
1131319049415
1213804124294
137815c43084
143cad7a8784
152182c851ba
hex12d2f6ca90

80848800400 has 30 divisors (see below), whose sum is σ = 194239243922. Its totient is φ = 32339520000.

The previous prime is 80848800391. The next prime is 80848800407. The reversal of 80848800400 is 400884808.

It can be written as a sum of positive squares in 3 ways, for example, as 712249344 + 80136551056 = 26688^2 + 283084^2 .

It is a super-2 number, since 2×808488004002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (80848800407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101060601 + ... + 101061400.

Almost surely, 280848800400 is an apocalyptic number.

80848800400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80848800400 is an abundant number, since it is smaller than the sum of its proper divisors (113390443522).

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

80848800400 is a wasteful number, since it uses less digits than its factorization.

80848800400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202122019 (or 202122008 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 40.

The spelling of 80848800400 in words is "eighty billion, eight hundred forty-eight million, eight hundred thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 202122001 404244002 808488004 1010610005 1616976008 2021220010 3233952016 4042440020 5053050025 8084880040 10106100050 16169760080 20212200100 40424400200 80848800400