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29430053 = 139211727
BaseRepresentation
bin111000001000…
…1000100100101
32001101012102222
41300101010211
530013230203
62530442125
7505102622
oct160210445
961335388
1029430053
1115681264
129a33345
136135743
143ca1349
1528b5038
hex1c11125

29430053 has 4 divisors (see below), whose sum is σ = 29641920. Its totient is φ = 29218188.

The previous prime is 29429989. The next prime is 29430061. The reversal of 29430053 is 35003492.

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 29430053 - 26 = 29429989 is a prime.

It is a super-2 number, since 2×294300532 = 1732256039165618, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29435053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105725 + ... + 106002.

It is an arithmetic number, because the mean of its divisors is an integer number (7410480).

Almost surely, 229430053 is an apocalyptic number.

It is an amenable number.

29430053 is a deficient number, since it is larger than the sum of its proper divisors (211867).

29430053 is a wasteful number, since it uses less digits than its factorization.

29430053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211866.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 29430053 is about 5424.9472808498. The cubic root of 29430053 is about 308.7429253079.

The spelling of 29430053 in words is "twenty-nine million, four hundred thirty thousand, fifty-three".

Divisors: 1 139 211727 29430053