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42636076 = 2272191072
BaseRepresentation
bin1010001010100…
…1001100101100
32222020010200221
42202221030230
541403323301
64121501124
71025254300
oct242511454
988203627
1042636076
112208112a
12123417a4
138aaa662
14593bd00
153b22da1
hex28a932c

42636076 has 54 divisors (see below), whose sum is σ = 92224860. Its totient is φ = 17149104.

The previous prime is 42636071. The next prime is 42636079. The reversal of 42636076 is 67063624.

It is not an unprimeable number, because it can be changed into a prime (42636071) 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 17 ways as a sum of consecutive naturals, for example, 398415 + ... + 398521.

Almost surely, 242636076 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42636076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46112430).

42636076 is an abundant number, since it is smaller than the sum of its proper divisors (49588784).

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

42636076 is a wasteful number, since it uses less digits than its factorization.

42636076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 42636076 is about 6529.6306174239. The cubic root of 42636076 is about 349.3486552759.

The spelling of 42636076 in words is "forty-two million, six hundred thirty-six thousand, seventy-six".

Divisors: 1 2 4 7 14 19 28 38 49 76 98 107 133 196 214 266 428 532 749 931 1498 1862 2033 2996 3724 4066 5243 8132 10486 11449 14231 20972 22898 28462 45796 56924 80143 99617 160286 199234 217531 320572 398468 435062 561001 870124 1122002 1522717 2244004 3045434 6090868 10659019 21318038 42636076