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102481869 = 374880089
BaseRepresentation
bin1100001101110…
…11111111001101
321010211121200210
412012323333031
5202213404434
614100313033
72353036650
oct606737715
9233747623
10102481869
1152937166
122a3a2779
1318302379
14d879897
158ee4ee9
hex61bbfcd

102481869 has 8 divisors (see below), whose sum is σ = 156162880. Its totient is φ = 58561056.

The previous prime is 102481867. The next prime is 102481871. The reversal of 102481869 is 968184201.

It is an interprime number because it is at equal distance from previous prime (102481867) and next prime (102481871).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102481869 - 21 = 102481867 is a prime.

It is a super-2 number, since 2×1024818692 = 21005066947466322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102481867) 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, 2440024 + ... + 2440065.

It is an arithmetic number, because the mean of its divisors is an integer number (19520360).

Almost surely, 2102481869 is an apocalyptic number.

It is an amenable number.

102481869 is a deficient number, since it is larger than the sum of its proper divisors (53681011).

102481869 is an equidigital number, since it uses as much as digits as its factorization.

102481869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4880099.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 102481869 is about 10123.3328997915. The cubic root of 102481869 is about 467.9674853223.

The spelling of 102481869 in words is "one hundred two million, four hundred eighty-one thousand, eight hundred sixty-nine".

Divisors: 1 3 7 21 4880089 14640267 34160623 102481869