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102323040 = 2535213173
BaseRepresentation
bin1100001100101…
…01001101100000
321010112112211020
412012111031200
5202143314130
614053045440
72351505621
oct606251540
9233475736
10102323040
11528388a6
122a326880
1318277ca1
14d837a48
158eb2e10
hex6195360

102323040 has 48 divisors (see below), whose sum is σ = 322319088. Its totient is φ = 27286016.

The previous prime is 102322993. The next prime is 102323041. The reversal of 102323040 is 40323201.

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

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102323041) 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 7 ways as a sum of consecutive naturals, for example, 106107 + ... + 107066.

It is an arithmetic number, because the mean of its divisors is an integer number (6714981).

Almost surely, 2102323040 is an apocalyptic number.

102323040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102323040 is an abundant number, since it is smaller than the sum of its proper divisors (219996048).

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

102323040 is a wasteful number, since it uses less digits than its factorization.

102323040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213191 (or 213183 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 102323040 is about 10115.4851589036. The cubic root of 102323040 is about 467.7256043620.

Adding to 102323040 its reverse (40323201), we get a palindrome (142646241).

The spelling of 102323040 in words is "one hundred two million, three hundred twenty-three thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 213173 426346 639519 852692 1065865 1279038 1705384 2131730 2558076 3197595 3410768 4263460 5116152 6395190 6821536 8526920 10232304 12790380 17053840 20464608 25580760 34107680 51161520 102323040