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61004742 = 2321148187
BaseRepresentation
bin1110100010110…
…1101111000110
311020210100202220
43220231233012
5111104122432
610015313210
71340350251
oct350555706
9136710686
1061004742
1131487847
121851b806
13c83c3a6
148160098
15555072c
hex3a2dbc6

61004742 has 16 divisors (see below), whose sum is σ = 122590272. Its totient is φ = 20238120.

The previous prime is 61004711. The next prime is 61004743. The reversal of 61004742 is 24740016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61004743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22828 + ... + 25359.

It is an arithmetic number, because the mean of its divisors is an integer number (7661892).

Almost surely, 261004742 is an apocalyptic number.

61004742 is an abundant number, since it is smaller than the sum of its proper divisors (61585530).

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

61004742 is a wasteful number, since it uses less digits than its factorization.

61004742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48403.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 61004742 is about 7810.5532454494. The cubic root of 61004742 is about 393.6599185211.

Adding to 61004742 its reverse (24740016), we get a palindrome (85744758).

The spelling of 61004742 in words is "sixty-one million, four thousand, seven hundred forty-two".

Divisors: 1 2 3 6 211 422 633 1266 48187 96374 144561 289122 10167457 20334914 30502371 61004742