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231310312011300 = 223521402275498473
BaseRepresentation
bin110100100110000000100000…
…111110101111011000100100
31010100000001100100112201110010
4310212000200332233120210
5220304242004333330200
62135542253530330220
766502422110234334
oct6446004076573044
91110001310481403
10231310312011300
1167780174979285
1221b395a3589970
139c0b6130279a2
14411969bcdb0c4
151bb1da322e150
hexd26020faf624

231310312011300 has 72 divisors (see below), whose sum is σ = 669262730478496. Its totient is φ = 61682298773760.

The previous prime is 231310312011239. The next prime is 231310312011301. The reversal of 231310312011300 is 3110213013132.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (231310312011301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39318864 + ... + 44817336.

Almost surely, 2231310312011300 is an apocalyptic number.

231310312011300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231310312011300 is an abundant number, since it is smaller than the sum of its proper divisors (437952418467196).

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

231310312011300 is a wasteful number, since it uses less digits than its factorization.

231310312011300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5638717 (or 5638710 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 231310312011300 its reverse (3110213013132), we get a palindrome (234420525024432).

The spelling of 231310312011300 in words is "two hundred thirty-one trillion, three hundred ten billion, three hundred twelve million, eleven thousand, three hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 150 300 140227 280454 420681 560908 701135 841362 1402270 1682724 2103405 2804540 3505675 4206810 5498473 7011350 8413620 10517025 10996946 14022700 16495419 21034050 21993892 27492365 32990838 42068100 54984730 65981676 82477095 109969460 137461825 164954190 274923650 329908380 412385475 549847300 824770950 1649541900 771034373371 1542068746742 2313103120113 3084137493484 3855171866855 4626206240226 7710343733710 9252412480452 11565515600565 15420687467420 19275859334275 23131031201130 38551718668550 46262062402260 57827578002825 77103437337100 115655156005650 231310312011300