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31024224340 = 22513111841307
BaseRepresentation
bin11100111001001100…
…000001100001010100
32222002010112220000221
4130321030001201110
51002014200134330
622130300444124
72145544361434
oct347114014124
988063486027
1031024224340
1112180402a2a
126019b49644
132c056343c5
1417044a02c4
15c189e2b7a
hex739301854

31024224340 has 24 divisors (see below), whose sum is σ = 65648211552. Its totient is φ = 12314958240.

The previous prime is 31024224317. The next prime is 31024224353. The reversal of 31024224340 is 4342242013.

It is a happy number.

It is a super-3 number, since 3×310242243403 (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5918034 + ... + 5923273.

It is an arithmetic number, because the mean of its divisors is an integer number (2735342148).

Almost surely, 231024224340 is an apocalyptic number.

It is an amenable number.

31024224340 is an abundant number, since it is smaller than the sum of its proper divisors (34623987212).

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

31024224340 is a wasteful number, since it uses less digits than its factorization.

31024224340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11841447 (or 11841445 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 31024224340 its reverse (4342242013), we get a palindrome (35366466353).

The spelling of 31024224340 in words is "thirty-one billion, twenty-four million, two hundred twenty-four thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 131 262 524 655 1310 2620 11841307 23682614 47365228 59206535 118413070 236826140 1551211217 3102422434 6204844868 7756056085 15512112170 31024224340