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26946143444 = 221119199161971
BaseRepresentation
bin11001000110000111…
…011000010011010100
32120112220220220201202
4121012013120103110
5420141203042234
620213501212032
71642515303653
oct310607302324
976486826652
1026946143444
1110478439440
125280261018
1327057a4c9c
141438a2319a
15a7a99777e
hex6461d84d4

26946143444 has 48 divisors (see below), whose sum is σ = 54422592000. Its totient is φ = 11545221600.

The previous prime is 26946143443. The next prime is 26946143479. The reversal of 26946143444 is 44434164962.

It is a super-2 number, since 2×269461434442 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26946143443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85379 + ... + 247349.

It is an arithmetic number, because the mean of its divisors is an integer number (1133804000).

Almost surely, 226946143444 is an apocalyptic number.

It is an amenable number.

26946143444 is an abundant number, since it is smaller than the sum of its proper divisors (27476448556).

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

26946143444 is a wasteful number, since it uses less digits than its factorization.

26946143444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162204 (or 162202 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 47.

The spelling of 26946143444 in words is "twenty-six billion, nine hundred forty-six million, one hundred forty-three thousand, four hundred forty-four".

Divisors: 1 2 4 11 19 22 38 44 76 199 209 398 418 796 836 2189 3781 4378 7562 8756 15124 41591 83182 161971 166364 323942 647884 1781681 3077449 3563362 6154898 7126724 12309796 32232229 33851939 64464458 67703878 128928916 135407756 354554519 612412351 709109038 1224824702 1418218076 2449649404 6736535861 13473071722 26946143444