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42100015030 = 25103109374989
BaseRepresentation
bin100111001101010110…
…110011111110110110
311000200000121100112221
4213031112303332312
51142210100440110
631201313232554
73020164136413
oct471526637666
9130600540487
1042100015030
11169443a7457
1281ab26275a
133c7c1771c8
14207545d10a
1511660537da
hex9cd5b3fb6

42100015030 has 32 divisors (see below), whose sum is σ = 77217940800. Its totient is φ = 16523471232.

The previous prime is 42100015021. The next prime is 42100015033. The reversal of 42100015030 is 3051000124.

It is a super-2 number, since 2×421000150302 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42100014995 and 42100015013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42100015033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75225 + ... + 299764.

It is an arithmetic number, because the mean of its divisors is an integer number (2413060650).

Almost surely, 242100015030 is an apocalyptic number.

42100015030 is a deficient number, since it is larger than the sum of its proper divisors (35117925770).

42100015030 is a wasteful number, since it uses less digits than its factorization.

42100015030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375208.

The product of its (nonzero) digits is 120, while the sum is 16.

Adding to 42100015030 its reverse (3051000124), we get a palindrome (45151015154).

The spelling of 42100015030 in words is "forty-two billion, one hundred million, fifteen thousand, thirty".

Divisors: 1 2 5 10 103 109 206 218 515 545 1030 1090 11227 22454 56135 112270 374989 749978 1874945 3749890 38623867 40873801 77247734 81747602 193119335 204369005 386238670 408738010 4210001503 8420003006 21050007515 42100015030