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309469484770 = 25232295875631
BaseRepresentation
bin1001000000011011101…
…00011001011011100010
31002120210110102200210021
410200031310121123202
520032243142003040
6354100205024054
731233641134555
oct4401564313342
91076713380707
10309469484770
1110a277502376
124bb8885502a
132324b93b634
1410d9aa4869c
1580b3bc724a
hex480dd196e2

309469484770 has 32 divisors (see below), whose sum is σ = 583802795520. Its totient is φ = 117888640320.

The previous prime is 309469484767. The next prime is 309469484771. The reversal of 309469484770 is 77484964903.

It is a junction number, because it is equal to n+sod(n) for n = 309469484699 and 309469484708.

It is not an unprimeable number, because it can be changed into a prime (309469484771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2885146 + ... + 2990485.

It is an arithmetic number, because the mean of its divisors is an integer number (18243837360).

Almost surely, 2309469484770 is an apocalyptic number.

309469484770 is a deficient number, since it is larger than the sum of its proper divisors (274333310750).

309469484770 is a wasteful number, since it uses less digits than its factorization.

309469484770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5875890.

The product of its (nonzero) digits is 36578304, while the sum is 61.

The spelling of 309469484770 in words is "three hundred nine billion, four hundred sixty-nine million, four hundred eighty-four thousand, seven hundred seventy".

Divisors: 1 2 5 10 23 46 115 229 230 458 1145 2290 5267 10534 26335 52670 5875631 11751262 29378155 58756310 135139513 270279026 675697565 1345519499 1351395130 2691038998 6727597495 13455194990 30946948477 61893896954 154734742385 309469484770