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340524138 = 23431319861
BaseRepresentation
bin10100010010111…
…111110001101010
3212201202102022010
4110102333301222
51144133233023
653442340350
711303256513
oct2422776152
9781672263
10340524138
11165242909
129605a6b6
1355719096
1433321a0a
151ed66093
hex144bfc6a

340524138 has 16 divisors (see below), whose sum is σ = 696887136. Its totient is φ = 110868240.

The previous prime is 340524103. The next prime is 340524139. The reversal of 340524138 is 831425043.

It is not an unprimeable number, because it can be changed into a prime (340524139) 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, 659673 + ... + 660188.

It is an arithmetic number, because the mean of its divisors is an integer number (43555446).

Almost surely, 2340524138 is an apocalyptic number.

340524138 is an abundant number, since it is smaller than the sum of its proper divisors (356362998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340524138 is a wasteful number, since it uses less digits than its factorization.

340524138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319909.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 340524138 is about 18453.2961283344. The cubic root of 340524138 is about 698.3116713332.

The spelling of 340524138 in words is "three hundred forty million, five hundred twenty-four thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 43 86 129 258 1319861 2639722 3959583 7919166 56754023 113508046 170262069 340524138