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61242616142 = 2472692421997
BaseRepresentation
bin111001000010010110…
…000010100101001110
312212002002210020122022
4321002112002211032
52000411102204032
644045013450142
74265435435201
oct710226024516
9185062706568
1061242616142
1123a77950a54
12ba52040952
135a10022c06
142d6d917938
1518d68aa512
hexe4258294e

61242616142 has 16 divisors (see below), whose sum is σ = 94167282240. Its totient is φ = 29858366688.

The previous prime is 61242616133. The next prime is 61242616163. The reversal of 61242616142 is 24161624216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1185713 + ... + 1236284.

It is an arithmetic number, because the mean of its divisors is an integer number (5885455140).

Almost surely, 261242616142 is an apocalyptic number.

61242616142 is a deficient number, since it is larger than the sum of its proper divisors (32924666098).

61242616142 is a wasteful number, since it uses less digits than its factorization.

61242616142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422315.

The product of its digits is 27648, while the sum is 35.

The spelling of 61242616142 in words is "sixty-one billion, two hundred forty-two million, six hundred sixteen thousand, one hundred forty-two".

Divisors: 1 2 47 94 269 538 12643 25286 2421997 4843994 113833859 227667718 651517193 1303034386 30621308071 61242616142