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42974548 = 2210743637
BaseRepresentation
bin1010001111101…
…1110101010100
32222212022222221
42203323311110
542000141143
64133032124
71031164141
oct243736524
988768887
1042974548
1122292461
1212485644
138b98736
1459c93c8
153b8d2ed
hex28fbd54

42974548 has 6 divisors (see below), whose sum is σ = 75205466. Its totient is φ = 21487272.

The previous prime is 42974543. The next prime is 42974593. The reversal of 42974548 is 84547924.

It can be written as a sum of positive squares in only one way, i.e., 37601424 + 5373124 = 6132^2 + 2318^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42974543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5371815 + ... + 5371822.

Almost surely, 242974548 is an apocalyptic number.

It is an amenable number.

42974548 is a deficient number, since it is larger than the sum of its proper divisors (32230918).

42974548 is a wasteful number, since it uses less digits than its factorization.

42974548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10743641 (or 10743639 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 42974548 is about 6555.4975402329. The cubic root of 42974548 is about 350.2706695376.

The spelling of 42974548 in words is "forty-two million, nine hundred seventy-four thousand, five hundred forty-eight".

Divisors: 1 2 4 10743637 21487274 42974548