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138074419 = 743458719
BaseRepresentation
bin10000011101011…
…01100100110011
3100121210220111101
420032231210303
5240321340134
621411225231
73264420220
oct1016554463
9317726441
10138074419
1170a3739a
123a2a8217
13227b4a52
14144a2947
15c1c5e14
hex83ad933

138074419 has 8 divisors (see below), whose sum is σ = 161469440. Its totient is φ = 115596936.

The previous prime is 138074411. The next prime is 138074437. The reversal of 138074419 is 914470831.

138074419 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 138074419 - 23 = 138074411 is a prime.

It is a super-2 number, since 2×1380744192 = 38129090364375122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138074411) 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, 229059 + ... + 229660.

It is an arithmetic number, because the mean of its divisors is an integer number (20183680).

Almost surely, 2138074419 is an apocalyptic number.

138074419 is a deficient number, since it is larger than the sum of its proper divisors (23395021).

138074419 is an equidigital number, since it uses as much as digits as its factorization.

138074419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458769.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 138074419 is about 11750.5071805433. The cubic root of 138074419 is about 516.8578001594.

The spelling of 138074419 in words is "one hundred thirty-eight million, seventy-four thousand, four hundred nineteen".

Divisors: 1 7 43 301 458719 3211033 19724917 138074419