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42726072 = 2331780253
BaseRepresentation
bin1010001011111…
…1001010111000
32222101201011010
42202333022320
541414213242
64123433520
71026110544
oct242771270
988351133
1042726072
1122132804
12123858a0
138b0c5cc
145962a24
153b3e89c
hex28bf2b8

42726072 has 16 divisors (see below), whose sum is σ = 106815240. Its totient is φ = 14242016.

The previous prime is 42726037. The next prime is 42726107. The reversal of 42726072 is 27062724.

It is an interprime number because it is at equal distance from previous prime (42726037) and next prime (42726107).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 890103 + ... + 890150.

Almost surely, 242726072 is an apocalyptic number.

It is an amenable number.

42726072 is an abundant number, since it is smaller than the sum of its proper divisors (64089168).

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

42726072 is a wasteful number, since it uses less digits than its factorization.

42726072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780262 (or 1780258 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 42726072 is about 6536.5183392996. The cubic root of 42726072 is about 349.5942836210.

Adding to 42726072 its reverse (27062724), we get a palindrome (69788796).

The spelling of 42726072 in words is "forty-two million, seven hundred twenty-six thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 24 1780253 3560506 5340759 7121012 10681518 14242024 21363036 42726072