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42102307 = 1321115349
BaseRepresentation
bin1010000010011…
…0111000100011
32221020000111201
42200212320203
541234233212
64102222031
71020602152
oct240467043
987200451
1042102307
11218470a5
1212124917
138951710
14583d599
153a69b57
hex2826e23

42102307 has 8 divisors (see below), whose sum is σ = 45558800. Its totient is φ = 38676960.

The previous prime is 42102293. The next prime is 42102311. The reversal of 42102307 is 70320124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42102307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42102317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4932 + ... + 10417.

It is an arithmetic number, because the mean of its divisors is an integer number (5694850).

Almost surely, 242102307 is an apocalyptic number.

42102307 is a deficient number, since it is larger than the sum of its proper divisors (3456493).

42102307 is a wasteful number, since it uses less digits than its factorization.

42102307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15573.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 42102307 is about 6488.6290539682. The cubic root of 42102307 is about 347.8846752007.

The spelling of 42102307 in words is "forty-two million, one hundred two thousand, three hundred seven".

Divisors: 1 13 211 2743 15349 199537 3238639 42102307