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12202154020 = 225794192623
BaseRepresentation
bin10110101110100111…
…00001100000100100
31011111101111122112101
423113103201200210
5144442222412040
65334450301444
7611244412030
oct132723414044
934441448471
1012202154020
1151a1885a11
122446587884
1311c5cc43a4
1483a8011c0
154b63a309a
hex2d74e1824

12202154020 has 48 divisors (see below), whose sum is σ = 29316607488. Its totient is φ = 4179104640.

The previous prime is 12202153991. The next prime is 12202154047. The reversal of 12202154020 is 2045120221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85429 + ... + 178051.

It is an arithmetic number, because the mean of its divisors is an integer number (610762656).

Almost surely, 212202154020 is an apocalyptic number.

12202154020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12202154020 is an abundant number, since it is smaller than the sum of its proper divisors (17114453468).

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

12202154020 is a wasteful number, since it uses less digits than its factorization.

12202154020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93580 (or 93578 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 12202154020 its reverse (2045120221), we get a palindrome (14247274241).

The spelling of 12202154020 in words is "twelve billion, two hundred two million, one hundred fifty-four thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 941 1882 3764 4705 6587 9410 13174 18820 26348 32935 65870 92623 131740 185246 370492 463115 648361 926230 1296722 1852460 2593444 3241805 6483610 12967220 87158243 174316486 348632972 435791215 610107701 871582430 1220215402 1743164860 2440430804 3050538505 6101077010 12202154020