Search a number
-
+
138902701973 = 770272823857
BaseRepresentation
bin1000000101011100111…
…1110000011110010101
3111021112100221100211112
42001113033300132111
54233433042430343
6143451102544405
713015065325460
oct2012717603625
9437470840745
10138902701973
11539a9a54972
1222b06298105
1310138449119
146a199d42d7
15392e721218
hex20573f0795

138902701973 has 8 divisors (see below), whose sum is σ = 158768592192. Its totient is φ = 119042473536.

The previous prime is 138902701957. The next prime is 138902702011. The reversal of 138902701973 is 379107209831.

138902701973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 138902701973 - 24 = 138902701957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138902701943) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1362740 + ... + 1461117.

It is an arithmetic number, because the mean of its divisors is an integer number (19846074024).

Almost surely, 2138902701973 is an apocalyptic number.

It is an amenable number.

138902701973 is a deficient number, since it is larger than the sum of its proper divisors (19865890219).

138902701973 is an equidigital number, since it uses as much as digits as its factorization.

138902701973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830891.

The product of its (nonzero) digits is 571536, while the sum is 50.

The spelling of 138902701973 in words is "one hundred thirty-eight billion, nine hundred two million, seven hundred one thousand, nine hundred seventy-three".

Divisors: 1 7 7027 49189 2823857 19766999 19843243139 138902701973