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253128702684 = 22311131091353311
BaseRepresentation
bin1110101110111110100…
…1010111101011011100
3220012100222022102100110
43223233221113223130
513121401421441214
6312141414330020
724200523320634
oct3535751275334
9805328272313
10253128702684
119839560a950
1241084359910
131ab40326560
14c37415b6c4
1568b7832159
hex3aefa57adc

253128702684 has 96 divisors (see below), whose sum is σ = 700257761280. Its totient is φ = 70155590400.

The previous prime is 253128702601. The next prime is 253128702721. The reversal of 253128702684 is 486207821352.

It is a congruent number.

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, 489612 + ... + 863699.

It is an arithmetic number, because the mean of its divisors is an integer number (7294351680).

Almost surely, 2253128702684 is an apocalyptic number.

It is an amenable number.

253128702684 is an abundant number, since it is smaller than the sum of its proper divisors (447129058596).

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

253128702684 is a wasteful number, since it uses less digits than its factorization.

253128702684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353451 (or 1353449 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 253128702684 in words is "two hundred fifty-three billion, one hundred twenty-eight million, seven hundred two thousand, six hundred eighty-four".

Divisors: 1 2 3 4 6 11 12 13 22 26 33 39 44 52 66 78 109 132 143 156 218 286 327 429 436 572 654 858 1199 1308 1417 1716 2398 2834 3597 4251 4796 5668 7194 8502 14388 15587 17004 31174 46761 62348 93522 187044 1353311 2706622 4059933 5413244 8119866 14886421 16239732 17593043 29772842 35186086 44659263 52779129 59545684 70372172 89318526 105558258 147510899 178637052 193523473 211116516 295021798 387046946 442532697 580570419 590043596 774093892 885065394 1161140838 1622619889 1770130788 1917641687 2322281676 3245239778 3835283374 4867859667 5752925061 6490479556 7670566748 9735719334 11505850122 19471438668 21094058557 23011700244 42188117114 63282175671 84376234228 126564351342 253128702684