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207228691968 = 2931275212039
BaseRepresentation
bin1100000011111111001…
…0101110011000000000
3201210220010100021200120
43000333302232120000
511343401021120333
6235111034020240
720654214550464
oct3007762563000
9653803307616
10207228691968
117a9812154a1
12341b4577680
1316706b16bbc
14a05c16c4a4
1555ccdb3db3
hex303fcae600

207228691968 has 160 divisors (see below), whose sum is σ = 557758586880. Its totient is φ = 68367237120.

The previous prime is 207228691939. The next prime is 207228691973. The reversal of 207228691968 is 869196822702.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 101631493 + ... + 101633531.

It is an arithmetic number, because the mean of its divisors is an integer number (3485991168).

Almost surely, 2207228691968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 207228691968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278879293440).

207228691968 is an abundant number, since it is smaller than the sum of its proper divisors (350529894912).

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

207228691968 is a wasteful number, since it uses less digits than its factorization.

207228691968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708 (or 2692 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 60.

The spelling of 207228691968 in words is "two hundred seven billion, two hundred twenty-eight million, six hundred ninety-one thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 127 128 192 254 256 381 384 508 512 521 762 768 1016 1042 1524 1536 1563 2032 2039 2084 3048 3126 4064 4078 4168 6096 6117 6252 8128 8156 8336 12192 12234 12504 16256 16312 16672 24384 24468 25008 32512 32624 33344 48768 48936 50016 65024 65248 66167 66688 97536 97872 100032 130496 132334 133376 195072 195744 198501 200064 258953 260992 264668 266752 391488 397002 400128 517906 521984 529336 776859 782976 794004 800256 1035812 1043968 1058672 1062319 1553718 1565952 1588008 2071624 2117344 2124638 3107436 3131904 3176016 3186957 4143248 4234688 4249276 6214872 6352032 6373914 8286496 8469376 8498552 12429744 12704064 12747828 16572992 16938752 16997104 24859488 25408128 25495656 33145984 33877504 33994208 49718976 50816256 50991312 66291968 67988416 99437952 101632512 101982624 132583936 134914513 135976832 198875904 203965248 269829026 271953664 397751808 404743539 407930496 539658052 543907328 809487078 815860992 1079316104 1618974156 1631721984 2158632208 3237948312 4317264416 6475896624 8634528832 12951793248 17269057664 25903586496 34538115328 51807172992 69076230656 103614345984 207228691968