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137950088989 = 178114711117
BaseRepresentation
bin1000000001111001110…
…1110100111100011101
3111012001222102121111011
42000132131310330131
54230010210321424
6143212353055221
712652350260236
oct2003635647435
9435058377434
10137950088989
1153560257709
122289b257511
1310015c90bbb
1469692a008d
1538c5ca0694
hex201e774f1d

137950088989 has 4 divisors (see below), whose sum is σ = 146064800124. Its totient is φ = 129835377856.

The previous prime is 137950088957. The next prime is 137950089029. The reversal of 137950088989 is 989880059731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39176284900 + 98773804089 = 197930^2 + 314283^2 .

It is not a de Polignac number, because 137950088989 - 25 = 137950088957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137950088489) 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, 4057355542 + ... + 4057355575.

It is an arithmetic number, because the mean of its divisors is an integer number (36516200031).

Almost surely, 2137950088989 is an apocalyptic number.

It is an amenable number.

137950088989 is a deficient number, since it is larger than the sum of its proper divisors (8114711135).

137950088989 is an equidigital number, since it uses as much as digits as its factorization.

137950088989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8114711134.

The product of its (nonzero) digits is 39191040, while the sum is 67.

The spelling of 137950088989 in words is "one hundred thirty-seven billion, nine hundred fifty million, eighty-eight thousand, nine hundred eighty-nine".

Divisors: 1 17 8114711117 137950088989