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980188801 = 1079160643
BaseRepresentation
bin111010011011000…
…111111010000001
32112022101202020221
4322123013322001
54001412020201
6241132503041
733201316204
oct7233077201
92468352227
10980188801
11463322399
1223431aa81
131280c1997
149427193b
155b0bb4a1
hex3a6c7e81

980188801 has 4 divisors (see below), whose sum is σ = 989349552. Its totient is φ = 971028052.

The previous prime is 980188799. The next prime is 980188813. The reversal of 980188801 is 108881089.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 108881089 = 253143019.

It is a cyclic number.

It is not a de Polignac number, because 980188801 - 21 = 980188799 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (980188841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4580215 + ... + 4580428.

It is an arithmetic number, because the mean of its divisors is an integer number (247337388).

Almost surely, 2980188801 is an apocalyptic number.

It is an amenable number.

980188801 is a deficient number, since it is larger than the sum of its proper divisors (9160751).

980188801 is a wasteful number, since it uses less digits than its factorization.

980188801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9160750.

The product of its (nonzero) digits is 36864, while the sum is 43.

The square root of 980188801 is about 31307.9670531320. The cubic root of 980188801 is about 993.3521713042.

The spelling of 980188801 in words is "nine hundred eighty million, one hundred eighty-eight thousand, eight hundred one".

Divisors: 1 107 9160643 980188801