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42493028990 = 2519379590099
BaseRepresentation
bin100111100100110010…
…000010101001111110
311001200102010112100112
4213210302002221332
51144011203411430
631304313030022
73033005533616
oct474462025176
9131612115315
1042493028990
1117026230685
12829a9b5312
134012710a49
1420b1725a46
15118a7d7195
hex9e4c82a7e

42493028990 has 32 divisors (see below), whose sum is σ = 80725680000. Its totient is φ = 16060107168.

The previous prime is 42493028989. The next prime is 42493029017. The reversal of 42493028990 is 9982039424.

It is a happy number.

42493028990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223040 + ... + 367059.

It is an arithmetic number, because the mean of its divisors is an integer number (2522677500).

Almost surely, 242493028990 is an apocalyptic number.

42493028990 is a deficient number, since it is larger than the sum of its proper divisors (38232651010).

42493028990 is a wasteful number, since it uses less digits than its factorization.

42493028990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590504.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 42493028990 in words is "forty-two billion, four hundred ninety-three million, twenty-eight thousand, nine hundred ninety".

Divisors: 1 2 5 10 19 38 95 190 379 758 1895 3790 7201 14402 36005 72010 590099 1180198 2950495 5900990 11211881 22423762 56059405 112118810 223647521 447295042 1118237605 2236475210 4249302899 8498605798 21246514495 42493028990