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103680506 = 251840253
BaseRepresentation
bin1100010111000…
…00100111111010
321020002111220202
412023200213322
5203020234011
614142122202
72366161346
oct613404772
9236074822
10103680506
1153585776
122a880362
1318631b17
14daac626
15918023b
hex62e09fa

103680506 has 4 divisors (see below), whose sum is σ = 155520762. Its totient is φ = 51840252.

The previous prime is 103680503. The next prime is 103680581. The reversal of 103680506 is 605086301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 71656225 + 32024281 = 8465^2 + 5659^2 .

It is not an unprimeable number, because it can be changed into a prime (103680503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25920125 + ... + 25920128.

Almost surely, 2103680506 is an apocalyptic number.

103680506 is a deficient number, since it is larger than the sum of its proper divisors (51840256).

103680506 is an equidigital number, since it uses as much as digits as its factorization.

103680506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51840255.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 103680506 is about 10182.3624960026. The cubic root of 103680506 is about 469.7848811840.

The spelling of 103680506 in words is "one hundred three million, six hundred eighty thousand, five hundred six".

Divisors: 1 2 51840253 103680506