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28741264905912 = 2331327086110677
BaseRepresentation
bin1101000100011110110001…
…11000101001011010111000
310202202122020011112201110120
412202033120320221122320
512231344102303442122
6141043315501413240
76024326223542616
oct642173070513270
9122678204481416
1028741264905912
119181113835499
1232822bb56a220
13130639c495800
147151283966b6
1534c95d94775c
hex1a23d8e296b8

28741264905912 has 48 divisors (see below), whose sum is σ = 77805495244440. Its totient is φ = 8843466123648.

The previous prime is 28741264905883. The next prime is 28741264905937. The reversal of 28741264905912 is 21950946214782.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3543051283 + ... + 3543059394.

Almost surely, 228741264905912 is an apocalyptic number.

It is an amenable number.

28741264905912 is an abundant number, since it is smaller than the sum of its proper divisors (49064230338528).

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

28741264905912 is a wasteful number, since it uses less digits than its factorization.

28741264905912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7086110712 (or 7086110695 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 60.

The spelling of 28741264905912 in words is "twenty-eight trillion, seven hundred forty-one billion, two hundred sixty-four million, nine hundred five thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 169 312 338 507 676 1014 1352 2028 4056 7086110677 14172221354 21258332031 28344442708 42516664062 56688885416 85033328124 92119438801 170066656248 184238877602 276358316403 368477755204 552716632806 736955510408 1105433265612 1197552704413 2210866531224 2395105408826 3592658113239 4790210817652 7185316226478 9580421635304 14370632452956 28741264905912