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31023130032202 = 2721128778413759
BaseRepresentation
bin1110000110111001000101…
…01001010011100001001010
311001211210010021100120012111
413003130202221103201022
513031240332242012302
6145551455034332534
76351230040231400
oct703344251234112
9131753107316174
1031023130032202
11998092114a540
1235905a758a14a
1314406126c4279
1479375568d470
1538beb1e880d7
hex1c3722a5384a

31023130032202 has 24 divisors (see below), whose sum is σ = 59053305035520. Its totient is φ = 12086933778360.

The previous prime is 31023130032199. The next prime is 31023130032227. The reversal of 31023130032202 is 20223003132013.

It is a super-3 number, since 3×310231300322023 (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14389205802 + ... + 14389207957.

It is an arithmetic number, because the mean of its divisors is an integer number (2460554376480).

Almost surely, 231023130032202 is an apocalyptic number.

31023130032202 is a deficient number, since it is larger than the sum of its proper divisors (28030175003318).

31023130032202 is a wasteful number, since it uses less digits than its factorization.

31023130032202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28778413786 (or 28778413779 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 31023130032202 its reverse (20223003132013), we get a palindrome (51246133164215).

The spelling of 31023130032202 in words is "thirty-one trillion, twenty-three billion, one hundred thirty million, thirty-two thousand, two hundred two".

Divisors: 1 2 7 11 14 22 49 77 98 154 539 1078 28778413759 57556827518 201448896313 316562551349 402897792626 633125102698 1410142274191 2215937859443 2820284548382 4431875718886 15511565016101 31023130032202