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42498397458 = 23211214638371
BaseRepresentation
bin100111100101000110…
…100001010100010010
311001200210020021111200
4213211012201110102
51144014042204313
631305024052030
73033102263256
oct474506412422
9131623207450
1042498397458
1117029268030
1282a0764016
13401387045a
1420b2322266
15118aee7b73
hex9e51a1512

42498397458 has 24 divisors (see below), whose sum is σ = 100450758096. Its totient is φ = 12878302200.

The previous prime is 42498397451. The next prime is 42498397489. The reversal of 42498397458 is 85479389424.

42498397458 is a `hidden beast` number, since 4 + 2 + 4 + 98 + 3 + 97 + 458 = 666.

It is a super-2 number, since 2×424983974582 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42498397395 and 42498397404.

It is not an unprimeable number, because it can be changed into a prime (42498397451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107318988 + ... + 107319383.

It is an arithmetic number, because the mean of its divisors is an integer number (4185448254).

Almost surely, 242498397458 is an apocalyptic number.

42498397458 is an abundant number, since it is smaller than the sum of its proper divisors (57952360638).

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

42498397458 is a wasteful number, since it uses less digits than its factorization.

42498397458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214638390 (or 214638387 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 63.

The spelling of 42498397458 in words is "forty-two billion, four hundred ninety-eight million, three hundred ninety-seven thousand, four hundred fifty-eight".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 214638371 429276742 643915113 1287830226 1931745339 2361022081 3863490678 4722044162 7083066243 14166132486 21249198729 42498397458