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29430617 = 191154087
BaseRepresentation
bin111000001000…
…1001101011001
32001101020012212
41300101031121
530013234432
62530444505
7505104356
oct160211531
961336185
1029430617
1115681727
129a33735
136135a88
143ca162d
1528b52b2
hex1c11359

29430617 has 4 divisors (see below), whose sum is σ = 29584896. Its totient is φ = 29276340.

The previous prime is 29430613. The next prime is 29430637. The reversal of 29430617 is 71603492.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29430617 - 22 = 29430613 is a prime.

It is a super-2 number, since 2×294306172 = 1732322434001378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29430613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76853 + ... + 77234.

It is an arithmetic number, because the mean of its divisors is an integer number (7396224).

Almost surely, 229430617 is an apocalyptic number.

It is an amenable number.

29430617 is a deficient number, since it is larger than the sum of its proper divisors (154279).

29430617 is a wasteful number, since it uses less digits than its factorization.

29430617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154278.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 29430617 is about 5424.9992626728. Note that the first 3 decimals coincide. The cubic root of 29430617 is about 308.7448975537.

The spelling of 29430617 in words is "twenty-nine million, four hundred thirty thousand, six hundred seventeen".

Divisors: 1 191 154087 29430617