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102338813 = 536532957
BaseRepresentation
bin1100001100110…
…01000011111101
321010120100110102
412012121003331
5202144320223
614053250445
72351602613
oct606310375
9233510412
10102338813
1152849735
122a333a25
1318282215
14d83d6b3
158eb7928
hex61990fd

102338813 has 8 divisors (see below), whose sum is σ = 104464728. Its totient is φ = 100220224.

The previous prime is 102338801. The next prime is 102338833. The reversal of 102338813 is 318833201.

It can be written as a sum of positive squares in 4 ways, for example, as 3892729 + 98446084 = 1973^2 + 9922^2 .

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 102338813 - 212 = 102334717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102338833) 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, 33131 + ... + 36087.

It is an arithmetic number, because the mean of its divisors is an integer number (13058091).

Almost surely, 2102338813 is an apocalyptic number.

It is an amenable number.

102338813 is a deficient number, since it is larger than the sum of its proper divisors (2125915).

102338813 is an equidigital number, since it uses as much as digits as its factorization.

102338813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 102338813 is about 10116.2647751035. The cubic root of 102338813 is about 467.7496362806.

The spelling of 102338813 in words is "one hundred two million, three hundred thirty-eight thousand, eight hundred thirteen".

Divisors: 1 53 653 2957 34609 156721 1930921 102338813