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29947101 = 397102911
BaseRepresentation
bin111001000111…
…1010011011101
32002100110200220
41302033103131
530131301401
62545511553
7512355222
oct162172335
962313626
1029947101
11159a4778
12a0425b9
136286ba2
143d97949
152968336
hex1c8f4dd

29947101 has 8 divisors (see below), whose sum is σ = 40341504. Its totient is φ = 19758720.

The previous prime is 29947087. The next prime is 29947103. The reversal of 29947101 is 10174992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-29947101 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 (29947103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51165 + ... + 51746.

It is an arithmetic number, because the mean of its divisors is an integer number (5042688).

Almost surely, 229947101 is an apocalyptic number.

It is an amenable number.

29947101 is a deficient number, since it is larger than the sum of its proper divisors (10394403).

29947101 is a wasteful number, since it uses less digits than its factorization.

29947101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103011.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 29947101 is about 5472.3944485024. The cubic root of 29947101 is about 310.5405103754.

The spelling of 29947101 in words is "twenty-nine million, nine hundred forty-seven thousand, one hundred one".

Divisors: 1 3 97 291 102911 308733 9982367 29947101