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29975101 = 132305777
BaseRepresentation
bin111001001011…
…0001000111101
32002101220002221
41302112020331
530133200401
62550245341
7512532652
oct162261075
962356087
1029975101
1115a13812
12a056851
136296860
143da3c29
1529717a1
hex1c9623d

29975101 has 4 divisors (see below), whose sum is σ = 32280892. Its totient is φ = 27669312.

The previous prime is 29975093. The next prime is 29975117. The reversal of 29975101 is 10157992.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14055001 + 15920100 = 3749^2 + 3990^2 .

It is a cyclic number.

It is not a de Polignac number, because 29975101 - 23 = 29975093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29975401) 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 3 ways as a sum of consecutive naturals, for example, 1152876 + ... + 1152901.

It is an arithmetic number, because the mean of its divisors is an integer number (8070223).

Almost surely, 229975101 is an apocalyptic number.

It is an amenable number.

29975101 is a deficient number, since it is larger than the sum of its proper divisors (2305791).

29975101 is a wasteful number, since it uses less digits than its factorization.

29975101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2305790.

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 29975101 is about 5474.9521459096. The cubic root of 29975101 is about 310.6372634887.

The spelling of 29975101 in words is "twenty-nine million, nine hundred seventy-five thousand, one hundred one".

Divisors: 1 13 2305777 29975101