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42010308 = 22321166953
BaseRepresentation
bin1010000001000…
…0011011000100
32221001100022100
42200100123010
541223312213
64100232100
71020040014
oct240203304
987040270
1042010308
1121793a6a
121209b630
13891b892
145817c44
153a4c773
hex28106c4

42010308 has 18 divisors (see below), whose sum is σ = 106192814. Its totient is φ = 14003424.

The previous prime is 42010303. The next prime is 42010361. The reversal of 42010308 is 80301024.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 23503104 + 18507204 = 4848^2 + 4302^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (42010303) 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, 583441 + ... + 583512.

Almost surely, 242010308 is an apocalyptic number.

It is an amenable number.

42010308 is an abundant number, since it is smaller than the sum of its proper divisors (64182506).

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

42010308 is a wasteful number, since it uses less digits than its factorization.

42010308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166963 (or 1166958 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 42010308 is about 6481.5359290835. The cubic root of 42010308 is about 347.6310993710.

The spelling of 42010308 in words is "forty-two million, ten thousand, three hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 1166953 2333906 3500859 4667812 7001718 10502577 14003436 21005154 42010308