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61045142 = 244967979
BaseRepresentation
bin1110100011011…
…1100110010110
311020212102012012
43220313212112
5111111421032
610020224222
71340606114
oct350674626
9136772165
1061045142
1131505134
121853b072
13c8548b2
148170ab4
15555c6b2
hex3a37996

61045142 has 8 divisors (see below), whose sum is σ = 91773000. Its totient is φ = 30454144.

The previous prime is 61045139. The next prime is 61045163. The reversal of 61045142 is 24154016.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33092 + ... + 34887.

It is an arithmetic number, because the mean of its divisors is an integer number (11471625).

Almost surely, 261045142 is an apocalyptic number.

61045142 is a deficient number, since it is larger than the sum of its proper divisors (30727858).

61045142 is a wasteful number, since it uses less digits than its factorization.

61045142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68430.

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

The square root of 61045142 is about 7813.1390618624. The cubic root of 61045142 is about 393.7467989326.

Adding to 61045142 its reverse (24154016), we get a palindrome (85199158).

The spelling of 61045142 in words is "sixty-one million, forty-five thousand, one hundred forty-two".

Divisors: 1 2 449 898 67979 135958 30522571 61045142