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20103167136 = 2531316108307
BaseRepresentation
bin10010101110001111…
…011111110010100000
31220220000122200221210
4102232033133302200
5312132402322021
613122452350120
71311114046503
oct225617376240
956800580853
1020103167136
118586794018
123a90615340
131b84b89b90
14d89c9d13a
157c9d48e76
hex4ae3dfca0

20103167136 has 48 divisors (see below), whose sum is σ = 56830110624. Its totient is φ = 6185589504.

The previous prime is 20103167101. The next prime is 20103167141. The reversal of 20103167136 is 63176130102.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8052906 + ... + 8055401.

It is an arithmetic number, because the mean of its divisors is an integer number (1183960638).

Almost surely, 220103167136 is an apocalyptic number.

20103167136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20103167136 is an abundant number, since it is smaller than the sum of its proper divisors (36726943488).

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

20103167136 is a wasteful number, since it uses less digits than its factorization.

20103167136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16108333 (or 16108325 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

Adding to 20103167136 its reverse (63176130102), we get a palindrome (83279297238).

The spelling of 20103167136 in words is "twenty billion, one hundred three million, one hundred sixty-seven thousand, one hundred thirty-six".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 78 96 104 156 208 312 416 624 1248 16108307 32216614 48324921 64433228 96649842 128866456 193299684 209407991 257732912 386599368 418815982 515465824 628223973 773198736 837631964 1256447946 1546397472 1675263928 2512895892 3350527856 5025791784 6701055712 10051583568 20103167136