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29949641 is a prime number
BaseRepresentation
bin111001000111…
…1111011001001
32002100121011222
41302033323021
530131342031
62545531425
7512365511
oct162177311
962317158
1029949641
11159a6677
12a043b75
1362880a7
143d98841
152968e7b
hex1c8fec9

29949641 has 2 divisors, whose sum is σ = 29949642. Its totient is φ = 29949640.

The previous prime is 29949617. The next prime is 29949671. The reversal of 29949641 is 14694992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28249225 + 1700416 = 5315^2 + 1304^2 .

It is a cyclic number.

It is not a de Polignac number, because 29949641 - 214 = 29933257 is a prime.

It is a super-4 number, since 4×299496414 (a number of 31 digits) contains 4444 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 29949592 and 29949601.

It is not a weakly prime, because it can be changed into another prime (29949671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14974820 + 14974821.

It is an arithmetic number, because the mean of its divisors is an integer number (14974821).

Almost surely, 229949641 is an apocalyptic number.

It is an amenable number.

29949641 is a deficient number, since it is larger than the sum of its proper divisors (1).

29949641 is an equidigital number, since it uses as much as digits as its factorization.

29949641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 44.

The square root of 29949641 is about 5472.6265174960. The cubic root of 29949641 is about 310.5492897516.

The spelling of 29949641 in words is "twenty-nine million, nine hundred forty-nine thousand, six hundred forty-one".