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31404105150 = 235211314713063
BaseRepresentation
bin11101001111110101…
…001001110110111110
310000001121100211112120
4131033311021312332
51003303422331100
622232110543410
72161136326605
oct351765116676
9100047324476
1031404105150
1112355887010
126105207b66
132c66250252
14173cb08a3c
15c3c0300a0
hex74fd49dbe

31404105150 has 192 divisors, whose sum is σ = 89575981056. Its totient is φ = 7210224000.

The previous prime is 31404105149. The next prime is 31404105157. The reversal of 31404105150 is 5150140413.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 31404105150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31404105157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2397519 + ... + 2410581.

It is an arithmetic number, because the mean of its divisors is an integer number (466541568).

Almost surely, 231404105150 is an apocalyptic number.

31404105150 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31404105150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44787990528).

31404105150 is an abundant number, since it is smaller than the sum of its proper divisors (58171875906).

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

31404105150 is a wasteful number, since it uses less digits than its factorization.

31404105150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13167 (or 13162 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 31404105150 its reverse (5150140413), we get a palindrome (36554245563).

The spelling of 31404105150 in words is "thirty-one billion, four hundred four million, one hundred five thousand, one hundred fifty".