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2742534 = 232152363
BaseRepresentation
bin1010011101100100000110
312011100001100
422131210012
51200230114
6134440530
732211504
oct12354406
95140040
102742534
111603563
12b03146
13750402
14515674
15392909
hex29d906

2742534 has 12 divisors (see below), whose sum is σ = 5942196. Its totient is φ = 914172.

The previous prime is 2742533. The next prime is 2742541. The reversal of 2742534 is 4352472.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2742498 and 2742507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2742533) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76164 + ... + 76199.

It is an arithmetic number, because the mean of its divisors is an integer number (495183).

22742534 is an apocalyptic number.

2742534 is an abundant number, since it is smaller than the sum of its proper divisors (3199662).

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

2742534 is a wasteful number, since it uses less digits than its factorization.

2742534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152371 (or 152368 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 2742534 is about 1656.0597815296. The cubic root of 2742534 is about 139.9750635859.

The spelling of 2742534 in words is "two million, seven hundred forty-two thousand, five hundred thirty-four".

Divisors: 1 2 3 6 9 18 152363 304726 457089 914178 1371267 2742534