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102126880 = 2552512543
BaseRepresentation
bin1100001011001…
…01010100100000
321010011120202001
412011211110200
5202121030010
614044533344
72350031002
oct605452440
9233146661
10102126880
1152714489
122a251254
131820990b
14d7c6372
158e74c3a
hex6165520

102126880 has 48 divisors (see below), whose sum is σ = 242331264. Its totient is φ = 40672000.

The previous prime is 102126863. The next prime is 102126889. The reversal of 102126880 is 88621201.

It is not an unprimeable number, because it can be changed into a prime (102126889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38889 + ... + 41431.

It is an arithmetic number, because the mean of its divisors is an integer number (5048568).

Almost surely, 2102126880 is an apocalyptic number.

102126880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102126880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121165632).

102126880 is an abundant number, since it is smaller than the sum of its proper divisors (140204384).

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

102126880 is a wasteful number, since it uses less digits than its factorization.

102126880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809 (or 2801 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 102126880 is about 10105.7844821666. The cubic root of 102126880 is about 467.4265262439.

The spelling of 102126880 in words is "one hundred two million, one hundred twenty-six thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 251 502 1004 1255 2008 2510 2543 4016 5020 5086 8032 10040 10172 12715 20080 20344 25430 40160 40688 50860 81376 101720 203440 406880 638293 1276586 2553172 3191465 5106344 6382930 10212688 12765860 20425376 25531720 51063440 102126880