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3101311030312 = 231127343888133
BaseRepresentation
bin101101001000010100100…
…010101101010000101000
3101222111000200211212012001
4231020110202231100220
5401302441110432222
610332420030300344
7440030243543305
oct55102442552050
911874020755161
103101311030312
11a96293253300
1242107a9576b4
131965b5b3a111
14aa16610a0ac
1555a13aebe27
hex2d2148ad428

3101311030312 has 48 divisors (see below), whose sum is σ = 6479205222420. Its totient is φ = 1390376021760.

The previous prime is 3101311030303. The next prime is 3101311030333. The reversal of 3101311030312 is 2130301131013.

It can be written as a sum of positive squares in 2 ways, for example, as 2636577052516 + 464733977796 = 1623754^2 + 681714^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3101311030312.

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, 21873403 + ... + 22014730.

Almost surely, 23101311030312 is an apocalyptic number.

It is an amenable number.

3101311030312 is an abundant number, since it is smaller than the sum of its proper divisors (3377894192108).

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

3101311030312 is a wasteful number, since it uses less digits than its factorization.

3101311030312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43888234 (or 43888219 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 3101311030312 its reverse (2130301131013), we get a palindrome (5231612161325).

The spelling of 3101311030312 in words is "three trillion, one hundred one billion, three hundred eleven million, thirty thousand, three hundred twelve".

Divisors: 1 2 4 8 11 22 44 73 88 121 146 242 292 484 584 803 968 1606 3212 6424 8833 17666 35332 70664 43888133 87776266 175552532 351105064 482769463 965538926 1931077852 3203833709 3862155704 5310464093 6407667418 10620928186 12815334836 21241856372 25630669672 35242170799 42483712744 70484341598 140968683196 281937366392 387663878789 775327757578 1550655515156 3101311030312