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22143631472020 = 2252375431638177
BaseRepresentation
bin1010000100011101101110…
…10010011011010110010100
32220101220120202021010110201
411002032313102123112110
510400300124124101040
6115032351024030244
74443552554630152
oct502166722332624
986356522233421
1022143631472020
117068074756703
122597701462384
13c4819b8891b6
14567a8675c3d2
152860177b1a9a
hex1423b749b594

22143631472020 has 48 divisors (see below), whose sum is σ = 48524155239168. Its totient is φ = 8472220359680.

The previous prime is 22143631471979. The next prime is 22143631472033. The reversal of 22143631472020 is 2027413634122.

It is a congruent number.

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, 34379172 + ... + 35017348.

It is an arithmetic number, because the mean of its divisors is an integer number (1010919900816).

Almost surely, 222143631472020 is an apocalyptic number.

22143631472020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22143631472020 is an abundant number, since it is smaller than the sum of its proper divisors (26380523767148).

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

22143631472020 is a wasteful number, since it uses less digits than its factorization.

22143631472020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713640 (or 713638 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 37.

The spelling of 22143631472020 in words is "twenty-two trillion, one hundred forty-three billion, six hundred thirty-one million, four hundred seventy-two thousand, twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 75431 150862 301724 377155 638177 754310 1276354 1508620 1734913 2552708 3190885 3469826 6381770 6939652 8674565 12763540 14678071 17349130 29356142 34698260 58712284 73390355 146780710 293561420 48138329287 96276658574 192553317148 240691646435 481383292870 962766585740 1107181573601 2214363147202 4428726294404 5535907868005 11071815736010 22143631472020