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102269953 = 432378371
BaseRepresentation
bin1100001100010…
…00010000000001
321010102212000001
412012020100001
5202140114303
614052000001
72351165062
oct606102001
9233385001
10102269953
1152801a25
122a300001
1318259a86
14d822569
158ea231d
hex6188401

102269953 has 4 divisors (see below), whose sum is σ = 104648368. Its totient is φ = 99891540.

The previous prime is 102269941. The next prime is 102269969. The reversal of 102269953 is 359962201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 359962201 = 1918945379.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102269953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102269903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1189143 + ... + 1189228.

It is an arithmetic number, because the mean of its divisors is an integer number (26162092).

Almost surely, 2102269953 is an apocalyptic number.

It is an amenable number.

102269953 is a deficient number, since it is larger than the sum of its proper divisors (2378415).

102269953 is an equidigital number, since it uses as much as digits as its factorization.

102269953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2378414.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 102269953 is about 10112.8607723038. The cubic root of 102269953 is about 467.6447022683.

The spelling of 102269953 in words is "one hundred two million, two hundred sixty-nine thousand, nine hundred fifty-three".

Divisors: 1 43 2378371 102269953