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102503231 = 1034672131
BaseRepresentation
bin1100001110000…
…01001100111111
321010212200222222
412013001030333
5202220100411
614100555555
72353156145
oct607011477
9233780888
10102503231
1152951216
122a3b2bbb
131830bccc
14d883595
158eeb4db
hex61c133f

102503231 has 8 divisors (see below), whose sum is σ = 103768704. Its totient is φ = 101243160.

The previous prime is 102503227. The next prime is 102503243. The reversal of 102503231 is 132305201.

It is a Cunningham number, because it is equal to 4683-1.

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

It is a cyclic number.

It is not a de Polignac number, because 102503231 - 22 = 102503227 is a prime.

It is a super-2 number, since 2×1025032312 = 21013824730878722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102503201) 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, 47036 + ... + 49166.

It is an arithmetic number, because the mean of its divisors is an integer number (12971088).

Almost surely, 2102503231 is an apocalyptic number.

102503231 is a deficient number, since it is larger than the sum of its proper divisors (1265473).

102503231 is a wasteful number, since it uses less digits than its factorization.

102503231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2701.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 102503231 is about 10124.3879321172. The cubic root of 102503231 is about 467.9999984781. Note that the first 5 decimals are identical.

Adding to 102503231 its reverse (132305201), we get a palindrome (234808432).

The spelling of 102503231 in words is "one hundred two million, five hundred three thousand, two hundred thirty-one".

Divisors: 1 103 467 2131 48101 219493 995177 102503231