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12918158330 = 2571119979103
BaseRepresentation
bin11000000011111101…
…10111001111111010
31020100021210102210112
430001332313033322
5202424022031310
65533504544322
7635060351120
oct140176671772
936307712715
1012918158330
115529a66610
1226063220a2
1312ab44828c
148a7943910
15509187705
hex301fb73fa

12918158330 has 128 divisors (see below), whose sum is σ = 30834155520. Its totient is φ = 3774781440.

The previous prime is 12918158327. The next prime is 12918158333. The reversal of 12918158330 is 3385181921.

It is an interprime number because it is at equal distance from previous prime (12918158327) and next prime (12918158333).

It is not an unprimeable number, because it can be changed into a prime (12918158333) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1414559 + ... + 1423661.

It is an arithmetic number, because the mean of its divisors is an integer number (240891840).

Almost surely, 212918158330 is an apocalyptic number.

12918158330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12918158330 is an abundant number, since it is smaller than the sum of its proper divisors (17915997190).

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

12918158330 is a wasteful number, since it uses less digits than its factorization.

12918158330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9244.

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 12918158330 in words is "twelve billion, nine hundred eighteen million, one hundred fifty-eight thousand, three hundred thirty".

Divisors: 1 2 5 7 10 11 14 19 22 35 38 55 70 77 95 97 110 133 154 190 194 209 266 385 418 485 665 679 770 970 1045 1067 1330 1358 1463 1843 2090 2134 2926 3395 3686 5335 6790 7315 7469 9103 9215 10670 12901 14630 14938 18206 18430 20273 25802 37345 40546 45515 63721 64505 74690 91030 100133 101365 127442 129010 141911 172957 200266 202730 283822 318605 345914 500665 637210 700931 709555 864785 882991 1001330 1210699 1401862 1419110 1729570 1765982 1902527 2421398 3504655 3805054 4414955 6053495 6180937 7009310 8829910 9512635 9712901 12106990 12361874 13317689 16776829 19025270 19425802 26635378 30904685 33553658 48564505 61809370 66588445 67990307 83884145 97129010 117437803 133176890 135980614 167768290 184545119 234875606 339951535 369090238 587189015 679903070 922725595 1174378030 1291815833 1845451190 2583631666 6459079165 12918158330