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42907910 = 2513930869
BaseRepresentation
bin1010001110101…
…1100100000110
32222201221120212
42203223210012
541441023120
64131355422
71030465643
oct243534406
988657525
1042907910
1122247391
1212452b72
138b742c6
1459acdca
153b786c5
hex28eb906

42907910 has 16 divisors (see below), whose sum is σ = 77792400. Its totient is φ = 17039136.

The previous prime is 42907883. The next prime is 42907913. The reversal of 42907910 is 1970924.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42907913) 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, 14045 + ... + 16824.

It is an arithmetic number, because the mean of its divisors is an integer number (4862025).

Almost surely, 242907910 is an apocalyptic number.

42907910 is a deficient number, since it is larger than the sum of its proper divisors (34884490).

42907910 is a wasteful number, since it uses less digits than its factorization.

42907910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31015.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 42907910 is about 6550.4129640810. The cubic root of 42907910 is about 350.0895281176.

The spelling of 42907910 in words is "forty-two million, nine hundred seven thousand, nine hundred ten".

Divisors: 1 2 5 10 139 278 695 1390 30869 61738 154345 308690 4290791 8581582 21453955 42907910