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309424913350 = 252747433469
BaseRepresentation
bin1001000000010110010…
…10010111101111000110
31002120200100120020021221
410200023022113233012
520032200234211400
6354051533430554
731232560240000
oct4401312275706
91076610506257
10309424913350
1110a25432a193
124bb7593b45a
1323242634107
1410d94b65370
1580aed20c1a
hex480b297bc6

309424913350 has 120 divisors (see below), whose sum is σ = 672509568240. Its totient is φ = 105915216960.

The previous prime is 309424913321. The next prime is 309424913359. The reversal of 309424913350 is 53319424903.

It is a junction number, because it is equal to n+sod(n) for n = 309424913297 and 309424913306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309424913359) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 89195416 + ... + 89198884.

It is an arithmetic number, because the mean of its divisors is an integer number (5604246402).

Almost surely, 2309424913350 is an apocalyptic number.

309424913350 is an abundant number, since it is smaller than the sum of its proper divisors (363084654890).

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

309424913350 is an equidigital number, since it uses as much as digits as its factorization.

309424913350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4252 (or 4226 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 43.

The spelling of 309424913350 in words is "three hundred nine billion, four hundred twenty-four million, nine hundred thirteen thousand, three hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 49 50 70 98 175 245 343 350 490 686 743 1225 1486 1715 2401 2450 3430 3469 3715 4802 5201 6938 7430 8575 10402 12005 17150 17345 18575 24010 24283 26005 34690 36407 37150 48566 52010 60025 72814 86725 120050 121415 130025 169981 173450 182035 242830 254849 260050 339962 364070 509698 607075 849905 910175 1189867 1214150 1274245 1699810 1783943 1820350 2379734 2548490 2577467 3567886 4249525 5154934 5949335 6371225 8329069 8499050 8919715 11898670 12742450 12887335 16658138 17839430 18042269 25774670 29746675 36084538 41645345 44598575 59493350 64436675 83290690 89197150 90211345 126295883 128873350 180422690 208226725 252591766 416453450 451056725 631479415 884071181 902113450 1262958830 1768142362 3157397075 4420355905 6188498267 6314794150 8840711810 12376996534 22101779525 30942491335 44203559050 61884982670 154712456675 309424913350