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138583941 = 346194647
BaseRepresentation
bin10000100001010…
…01111110000101
3100122202210102120
420100221332011
5240434141231
621430200153
73301641546
oct1020517605
9318683376
10138583941
1171255191
123a4b3059
1322932942
14145964cd
15c276d96
hex8429f85

138583941 has 4 divisors (see below), whose sum is σ = 184778592. Its totient is φ = 92389292.

The previous prime is 138583897. The next prime is 138583957. The reversal of 138583941 is 149385831.

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.

It is a cyclic number.

It is not a de Polignac number, because 138583941 - 211 = 138581893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138583893 and 138583902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138583961) 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, 23097321 + ... + 23097326.

It is an arithmetic number, because the mean of its divisors is an integer number (46194648).

Almost surely, 2138583941 is an apocalyptic number.

It is an amenable number.

138583941 is a deficient number, since it is larger than the sum of its proper divisors (46194651).

138583941 is an equidigital number, since it uses as much as digits as its factorization.

138583941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46194650.

The product of its digits is 103680, while the sum is 42.

The square root of 138583941 is about 11772.1680670979. The cubic root of 138583941 is about 517.4927889961.

The spelling of 138583941 in words is "one hundred thirty-eight million, five hundred eighty-three thousand, nine hundred forty-one".

Divisors: 1 3 46194647 138583941