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100516880 = 2453140531
BaseRepresentation
bin1011111110111…
…00010000010000
321000010210020102
411333130100100
5201213020010
613550231532
72330244062
oct577342020
9230123212
10100516880
1151814902
12297b55a8
1317a94b59
14d4c7732
158c57ba5
hex5fdc410

100516880 has 40 divisors (see below), whose sum is σ = 241246464. Its totient is φ = 38908800.

The previous prime is 100516861. The next prime is 100516883. The reversal of 100516880 is 88615001.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (100516883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17786 + ... + 22745.

Almost surely, 2100516880 is an apocalyptic number.

100516880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100516880 is an abundant number, since it is smaller than the sum of its proper divisors (140729584).

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

100516880 is a wasteful number, since it uses less digits than its factorization.

100516880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40575 (or 40569 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 100516880 is about 10025.8106904130. The cubic root of 100516880 is about 464.9572242611.

The spelling of 100516880 in words is "one hundred million, five hundred sixteen thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 31 40 62 80 124 155 248 310 496 620 1240 2480 40531 81062 162124 202655 324248 405310 648496 810620 1256461 1621240 2512922 3242480 5025844 6282305 10051688 12564610 20103376 25129220 50258440 100516880