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102108948 = 2238509079
BaseRepresentation
bin1100001011000…
…00111100010100
321010010200010220
412011200330110
5202114441243
614044314340
72346624504
oct605407424
9233120126
10102108948
1152701a67
122a2429b0
13182016c6
14d7bda04
158e6e783
hex6160f14

102108948 has 12 divisors (see below), whose sum is σ = 238254240. Its totient is φ = 34036312.

The previous prime is 102108943. The next prime is 102108959. The reversal of 102108948 is 849801201.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102108943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4254528 + ... + 4254551.

It is an arithmetic number, because the mean of its divisors is an integer number (19854520).

Almost surely, 2102108948 is an apocalyptic number.

It is an amenable number.

102108948 is an abundant number, since it is smaller than the sum of its proper divisors (136145292).

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

102108948 is a wasteful number, since it uses less digits than its factorization.

102108948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8509086 (or 8509084 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 102108948 is about 10104.8972285719. The cubic root of 102108948 is about 467.3991668680.

The spelling of 102108948 in words is "one hundred two million, one hundred eight thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 12 8509079 17018158 25527237 34036316 51054474 102108948