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4269154131990 = 23251159271926881
BaseRepresentation
bin111110000111111101011…
…010100110000000010110
3120010010102200200021112100
4332013331122212000112
51024421211424210430
613025120005102530
7620302422245226
oct76077532460026
916103380607470
104269154131990
1113a65a1235770
1258b4830b7a46
1324c76c23c927
1410a8b196c086
15760b5657960
hex3e1fd6a6016

4269154131990 has 192 divisors, whose sum is σ = 12319095859200. Its totient is φ = 1016992972800.

The previous prime is 4269154131953. The next prime is 4269154131997. The reversal of 4269154131990 is 991314519624.

4269154131990 is a `hidden beast` number, since 4 + 2 + 6 + 9 + 1 + 541 + 3 + 1 + 9 + 90 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4269154131997) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 158803350 + ... + 158830230.

It is an arithmetic number, because the mean of its divisors is an integer number (64161957600).

Almost surely, 24269154131990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4269154131990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6159547929600).

4269154131990 is an abundant number, since it is smaller than the sum of its proper divisors (8049941727210).

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

4269154131990 is a wasteful number, since it uses less digits than its factorization.

4269154131990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29683 (or 29680 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The spelling of 4269154131990 in words is "four trillion, two hundred sixty-nine billion, one hundred fifty-four million, one hundred thirty-one thousand, nine hundred ninety".