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311430023241020 = 22519551179645141
BaseRepresentation
bin100011011001111100111001…
…1111010000101110100111100
31111211200102022210012022012222
41012303321303322011310330
5311304432141422203040
63022204551054144512
7122412035204131355
oct10663716372056474
91454612283168188
10311430023241020
119025a805179112
122ab192847b2138
13104a09572a8978
1456c9417708d2c
1526010225cbbb5
hex11b3e73e85d3c

311430023241020 has 24 divisors (see below), whose sum is σ = 654006402113568. Its totient is φ = 124571370571200.

The previous prime is 311430023240993. The next prime is 311430023241037. The reversal of 311430023241020 is 20142320034113.

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, 35912351 + ... + 43732790.

It is an arithmetic number, because the mean of its divisors is an integer number (27250266754732).

Almost surely, 2311430023241020 is an apocalyptic number.

It is an amenable number.

311430023241020 is an abundant number, since it is smaller than the sum of its proper divisors (342576378872548).

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

311430023241020 is a wasteful number, since it uses less digits than its factorization.

311430023241020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79840661 (or 79840659 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 311430023241020 its reverse (20142320034113), we get a palindrome (331572343275133).

The spelling of 311430023241020 in words is "three hundred eleven trillion, four hundred thirty billion, twenty-three million, two hundred forty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 195511 391022 782044 977555 1955110 3910220 79645141 159290282 318580564 398225705 796451410 1592902820 15571501162051 31143002324102 62286004648204 77857505810255 155715011620510 311430023241020