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29380057 = 72896737
BaseRepresentation
bin111000000010…
…0110111011001
32001021122212021
41300010313121
530010130212
62525414441
7504504100
oct160046731
961248767
1029380057
1115647743
129a0a421
136118a65
143c8b037
1528a5307
hex1c04dd9

29380057 has 12 divisors (see below), whose sum is σ = 34565940. Its totient is φ = 24896256.

The previous prime is 29380049. The next prime is 29380081. The reversal of 29380057 is 75008392.

It can be written as a sum of positive squares in 2 ways, for example, as 10055241 + 19324816 = 3171^2 + 4396^2 .

It is not a de Polignac number, because 29380057 - 23 = 29380049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29380357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 993 + ... + 7729.

It is an arithmetic number, because the mean of its divisors is an integer number (2880495).

Almost surely, 229380057 is an apocalyptic number.

It is an amenable number.

29380057 is a deficient number, since it is larger than the sum of its proper divisors (5185883).

29380057 is an equidigital number, since it uses as much as digits as its factorization.

29380057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6840 (or 6833 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 29380057 is about 5420.3373511249. The cubic root of 29380057 is about 308.5679945953.

The spelling of 29380057 in words is "twenty-nine million, three hundred eighty thousand, fifty-seven".

Divisors: 1 7 49 89 623 4361 6737 47159 330113 599593 4197151 29380057