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42767620 = 2257305483
BaseRepresentation
bin1010001100100…
…1010100000100
32222110211010221
42203021110010
541422030440
64124354124
71026342640
oct243112404
988424127
1042767620
1122160a45
12123a5944
138b254ac
145973c20
153b4bd4a
hex28c9504

42767620 has 24 divisors (see below), whose sum is σ = 102642624. Its totient is φ = 14663136.

The previous prime is 42767587. The next prime is 42767623. The reversal of 42767620 is 2676724.

It is not an unprimeable number, because it can be changed into a prime (42767623) 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, 152602 + ... + 152881.

It is an arithmetic number, because the mean of its divisors is an integer number (4276776).

Almost surely, 242767620 is an apocalyptic number.

It is an amenable number.

42767620 is an abundant number, since it is smaller than the sum of its proper divisors (59875004).

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

42767620 is a wasteful number, since it uses less digits than its factorization.

42767620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305499 (or 305497 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 42767620 is about 6539.6957115756. The cubic root of 42767620 is about 349.7075652545.

The spelling of 42767620 in words is "forty-two million, seven hundred sixty-seven thousand, six hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 305483 610966 1221932 1527415 2138381 3054830 4276762 6109660 8553524 10691905 21383810 42767620