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31048843050 = 234527666381
BaseRepresentation
bin11100111010101001…
…111011111100101010
32222010211212122120000
4130322221323330222
51002042000434200
622132540243430
72146263545211
oct347251737452
988124778500
1031048843050
1112193298375
126026240576
132c0a773ba4
14170786c078
15c1ac57300
hex73aa7bf2a

31048843050 has 60 divisors (see below), whose sum is σ = 86269796646. Its totient is φ = 8279690400.

The previous prime is 31048843037. The next prime is 31048843051. The reversal of 31048843050 is 5034884013.

It can be written as a sum of positive squares in 3 ways, for example, as 29975035689 + 1073807361 = 173133^2 + 32769^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31048842996 and 31048843014.

It is not an unprimeable number, because it can be changed into a prime (31048843051) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 3829141 + ... + 3837240.

Almost surely, 231048843050 is an apocalyptic number.

31048843050 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31048843050 is an abundant number, since it is smaller than the sum of its proper divisors (55220953596).

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

31048843050 is a wasteful number, since it uses less digits than its factorization.

31048843050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7666405 (or 7666391 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 31048843050 in words is "thirty-one billion, forty-eight million, eight hundred forty-three thousand, fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 27 30 45 50 54 75 81 90 135 150 162 225 270 405 450 675 810 1350 2025 4050 7666381 15332762 22999143 38331905 45998286 68997429 76663810 114995715 137994858 191659525 206992287 229991430 344987145 383319050 413984574 574978575 620976861 689974290 1034961435 1149957150 1241953722 1724935725 2069922870 3104884305 3449871450 5174807175 6209768610 10349614350 15524421525 31048843050