Search a number
-
+
139008801 = 365970313
BaseRepresentation
bin10000100100100…
…01101100100001
3100200120101020010
420102101230201
5241041240201
621443235133
73305361321
oct1022215441
9320511203
10139008801
1171515408
123a678aa9
1322a51139
1414667281
15c30cbd6
hex8491b21

139008801 has 8 divisors (see below), whose sum is σ = 185628960. Its totient is φ = 92530592.

The previous prime is 139008799. The next prime is 139008811. The reversal of 139008801 is 108800931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 139008801 - 21 = 139008799 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (139008811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33180 + ... + 37133.

It is an arithmetic number, because the mean of its divisors is an integer number (23203620).

Almost surely, 2139008801 is an apocalyptic number.

It is an amenable number.

139008801 is a deficient number, since it is larger than the sum of its proper divisors (46620159).

139008801 is an equidigital number, since it uses as much as digits as its factorization.

139008801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70975.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 139008801 is about 11790.1993621821. The cubic root of 139008801 is about 518.0210793785.

The spelling of 139008801 in words is "one hundred thirty-nine million, eight thousand, eight hundred one".

Divisors: 1 3 659 1977 70313 210939 46336267 139008801