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318894090372 = 2233111320648413
BaseRepresentation
bin1001010001111111001…
…00011010100010000100
31010111010021111021012000
410220333210122202010
520211043341342442
6402255315025300
732016331021044
oct4507744324204
91114107437160
10318894090372
11113273445020
1251978b9b230
13240c1366a40
14116125cb724
1584662c7d4c
hex4a3f91a884

318894090372 has 96 divisors (see below), whose sum is σ = 971301394560. Its totient is φ = 89201139840.

The previous prime is 318894090341. The next prime is 318894090379. The reversal of 318894090372 is 273090498813.

318894090372 is a `hidden beast` number, since 3 + 188 + 9 + 4 + 0 + 90 + 372 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (318894090379) 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 31 ways as a sum of consecutive naturals, for example, 10308763 + ... + 10339650.

It is an arithmetic number, because the mean of its divisors is an integer number (10117722860).

Almost surely, 2318894090372 is an apocalyptic number.

It is an amenable number.

318894090372 is an abundant number, since it is smaller than the sum of its proper divisors (652407304188).

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

318894090372 is a wasteful number, since it uses less digits than its factorization.

318894090372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20648450 (or 20648442 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 318894090372 in words is "three hundred eighteen billion, eight hundred ninety-four million, ninety thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 9 11 12 13 18 22 26 27 33 36 39 44 52 54 66 78 99 108 117 132 143 156 198 234 286 297 351 396 429 468 572 594 702 858 1188 1287 1404 1716 2574 3861 5148 7722 15444 20648413 41296826 61945239 82593652 123890478 185835717 227132543 247780956 268429369 371671434 454265086 536858738 557507151 681397629 743342868 805288107 908530172 1073717476 1115014302 1362795258 1610576214 2044192887 2230028604 2415864321 2725590516 2952723059 3221152428 4088385774 4831728642 5905446118 6132578661 7247592963 8176771548 8858169177 9663457284 11810892236 12265157322 14495185926 17716338354 24530314644 26574507531 28990371852 35432676708 53149015062 79723522593 106298030124 159447045186 318894090372