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31240214300 = 2252312402143
BaseRepresentation
bin11101000110000011…
…111101011100011100
32222122011222022120002
4131012003331130130
51002434443324200
622203534113432
72154106303661
oct350603753434
988564868502
1031240214300
1112281317429
12607a34b878
132c3b2c9809
141725045a68
15c2c959bd5
hex7460fd71c

31240214300 has 18 divisors (see below), whose sum is σ = 67791265248. Its totient is φ = 12496085680.

The previous prime is 31240214297. The next prime is 31240214303. The reversal of 31240214300 is 341204213.

It is an interprime number because it is at equal distance from previous prime (31240214297) and next prime (31240214303).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31240214303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 156200972 + ... + 156201171.

Almost surely, 231240214300 is an apocalyptic number.

It is an amenable number.

31240214300 is an abundant number, since it is smaller than the sum of its proper divisors (36551050948).

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

31240214300 is a wasteful number, since it uses less digits than its factorization.

31240214300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312402157 (or 312402150 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31240214300 its reverse (341204213), we get a palindrome (31581418513).

The spelling of 31240214300 in words is "thirty-one billion, two hundred forty million, two hundred fourteen thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 312402143 624804286 1249608572 1562010715 3124021430 6248042860 7810053575 15620107150 31240214300