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42906276 = 22327170263
BaseRepresentation
bin1010001110101…
…1001010100100
32222201212100100
42203223022210
541441000101
64131344100
71030461120
oct243531244
988655310
1042906276
1122246136
1212452030
138b7363a
1459ac580
153b77e86
hex28eb2a4

42906276 has 36 divisors (see below), whose sum is σ = 123952192. Its totient is φ = 12258864.

The previous prime is 42906271. The next prime is 42906319. The reversal of 42906276 is 67260924.

It is a happy number.

42906276 is a `hidden beast` number, since 4 + 29 + 0 + 627 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 42906276.

It is not an unprimeable number, because it can be changed into a prime (42906271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84880 + ... + 85383.

Almost surely, 242906276 is an apocalyptic number.

It is an amenable number.

42906276 is an abundant number, since it is smaller than the sum of its proper divisors (81045916).

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

42906276 is a wasteful number, since it uses less digits than its factorization.

42906276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170280 (or 170275 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 42906276 is about 6550.2882379327. The cubic root of 42906276 is about 350.0850840765.

The spelling of 42906276 in words is "forty-two million, nine hundred six thousand, two hundred seventy-six".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 170263 340526 510789 681052 1021578 1191841 1532367 2043156 2383682 3064734 3575523 4767364 6129468 7151046 10726569 14302092 21453138 42906276