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31441405130 = 257983479509
BaseRepresentation
bin11101010010000011…
…011100010011001010
310000011012112212111022
4131102003130103022
51003342444431010
622235522232442
72162101351112
oct352203342312
9100135485438
1031441405130
1112374943043
1261157b5722
132c70bacb45
141743a58042
15c4044bd55
hex7520dc4ca

31441405130 has 32 divisors (see below), whose sum is σ = 58001529600. Its totient is φ = 12267732672.

The previous prime is 31441405117. The next prime is 31441405133. The reversal of 31441405130 is 3150414413.

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 31441405130.

It is not an unprimeable number, because it can be changed into a prime (31441405133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174185 + ... + 305324.

It is an arithmetic number, because the mean of its divisors is an integer number (1812547800).

Almost surely, 231441405130 is an apocalyptic number.

31441405130 is a deficient number, since it is larger than the sum of its proper divisors (26560124470).

31441405130 is a wasteful number, since it uses less digits than its factorization.

31441405130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479678.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 31441405130 its reverse (3150414413), we get a palindrome (34591819543).

The spelling of 31441405130 in words is "thirty-one billion, four hundred forty-one million, four hundred five thousand, one hundred thirty".

Divisors: 1 2 5 10 79 83 158 166 395 415 790 830 6557 13114 32785 65570 479509 959018 2397545 4795090 37881211 39799247 75762422 79598494 189406055 198996235 378812110 397992470 3144140513 6288281026 15720702565 31441405130