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42115046 = 221057523
BaseRepresentation
bin1010000010100…
…1111111100110
32221020122222112
42200221333212
541240140141
64102401022
71020654251
oct240517746
987218875
1042115046
1121855726
1212130172
13895745c
145844098
153a6d7eb
hex2829fe6

42115046 has 4 divisors (see below), whose sum is σ = 63172572. Its totient is φ = 21057522.

The previous prime is 42115027. The next prime is 42115049. The reversal of 42115046 is 64051124.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42115049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10528760 + ... + 10528763.

It is an arithmetic number, because the mean of its divisors is an integer number (15793143).

Almost surely, 242115046 is an apocalyptic number.

42115046 is a deficient number, since it is larger than the sum of its proper divisors (21057526).

42115046 is a wasteful number, since it uses less digits than its factorization.

42115046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21057525.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 42115046 is about 6489.6106200603. The cubic root of 42115046 is about 347.9197584404.

The spelling of 42115046 in words is "forty-two million, one hundred fifteen thousand, forty-six".

Divisors: 1 2 21057523 42115046