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123030245013420 = 22352394199465161
BaseRepresentation
bin11011111110010100110110…
…000011001111011110101100
3121010121120120022101011222210
4123332110312003033132230
5112111211420210412140
61113355151520010420
734625433106623033
oct3376246603173654
9533546508334883
10123030245013420
1136223919a11148
1211970104160a10
135385919009704
1422549a4b4d71a
15e3547426ed80
hex6fe5360cf7ac

123030245013420 has 96 divisors (see below), whose sum is σ = 359500482593280. Its totient is φ = 31378292661760.

The previous prime is 123030245013409. The next prime is 123030245013437. The reversal of 123030245013420 is 24310542030321.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8265640 + ... + 17730800.

It is an arithmetic number, because the mean of its divisors is an integer number (3744796693680).

Almost surely, 2123030245013420 is an apocalyptic number.

123030245013420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123030245013420 is an abundant number, since it is smaller than the sum of its proper divisors (236470237579860).

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

123030245013420 is a wasteful number, since it uses less digits than its factorization.

123030245013420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9474615 (or 9474613 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 123030245013420 its reverse (24310542030321), we get a palindrome (147340787043741).

The spelling of 123030245013420 in words is "one hundred twenty-three trillion, thirty billion, two hundred forty-five million, thirteen thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 30 46 60 69 92 115 138 230 276 345 460 690 1380 9419 18838 28257 37676 47095 56514 94190 113028 141285 188380 216637 282570 433274 565140 649911 866548 1083185 1299822 2166370 2599644 3249555 4332740 6499110 9465161 12998220 18930322 28395483 37860644 47325805 56790966 94651610 113581932 141977415 189303220 217698703 283954830 435397406 567909660 653096109 870794812 1088493515 1306192218 2176987030 2612384436 3265480545 4353974060 6530961090 13061922180 89152351459 178304702918 267457054377 356609405836 445761757295 534914108754 891523514590 1069828217508 1337285271885 1783047029180 2050504083557 2674570543770 4101008167114 5349141087540 6151512250671 8202016334228 10252520417785 12303024501342 20505040835570 24606049002684 30757561253355 41010081671140 61515122506710 123030245013420