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29750913 = 323305657
BaseRepresentation
bin111000101111…
…1011010000001
32001222111120200
41301133122001
530104012123
62541355413
7510610233
oct161373201
961874520
1029750913
1115880335
129b68b69
1362187ba
143d46253
15292a143
hex1c5f681

29750913 has 6 divisors (see below), whose sum is σ = 42973554. Its totient is φ = 19833936.

The previous prime is 29750911. The next prime is 29750933. The reversal of 29750913 is 31905792.

It can be written as a sum of positive squares in only one way, i.e., 27279729 + 2471184 = 5223^2 + 1572^2 .

It is not a de Polignac number, because 29750913 - 21 = 29750911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29750911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1652820 + ... + 1652837.

It is an arithmetic number, because the mean of its divisors is an integer number (7162259).

Almost surely, 229750913 is an apocalyptic number.

It is an amenable number.

29750913 is a deficient number, since it is larger than the sum of its proper divisors (13222641).

29750913 is a wasteful number, since it uses less digits than its factorization.

29750913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305663 (or 3305660 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 29750913 is about 5454.4397512485. The cubic root of 29750913 is about 309.8608914537.

The spelling of 29750913 in words is "twenty-nine million, seven hundred fifty thousand, nine hundred thirteen".

Divisors: 1 3 9 3305657 9916971 29750913