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2311431143060 = 2251323386526947
BaseRepresentation
bin100001101000101100000…
…010000011111010010100
322011222012121111010001002
4201220230002003322110
5300332302333034220
64525505023122432
7325665263354204
oct41505402037224
98158177433032
102311431143060
118112aa692056
12313b79743418
13139c75714250
147dc33c52404
15401d3ee1c75
hex21a2c083e94

2311431143060 has 48 divisors (see below), whose sum is σ = 5454668290176. Its totient is φ = 816344909952.

The previous prime is 2311431143051. The next prime is 2311431143089. The reversal of 2311431143060 is 603411341132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193257494 + ... + 193269453.

It is an arithmetic number, because the mean of its divisors is an integer number (113638922712).

Almost surely, 22311431143060 is an apocalyptic number.

2311431143060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311431143060 is an abundant number, since it is smaller than the sum of its proper divisors (3143237147116).

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

2311431143060 is a wasteful number, since it uses less digits than its factorization.

2311431143060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386526992 (or 386526990 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 2311431143060 its reverse (603411341132), we get a palindrome (2914842484192).

The spelling of 2311431143060 in words is "two trillion, three hundred eleven billion, four hundred thirty-one million, one hundred forty-three thousand, sixty".

Divisors: 1 2 4 5 10 13 20 23 26 46 52 65 92 115 130 230 260 299 460 598 1196 1495 2990 5980 386526947 773053894 1546107788 1932634735 3865269470 5024850311 7730538940 8890119781 10049700622 17780239562 20099401244 25124251555 35560479124 44450598905 50248503110 88901197810 100497006220 115571557153 177802395620 231143114306 462286228612 577857785765 1155715571530 2311431143060