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29961269 = 1315115263
BaseRepresentation
bin111001001001…
…0110000110101
32002101012010122
41302102300311
530132230034
62550101325
7512444432
oct162226065
962335118
1029961269
1115a04388
12a04a845
136290480
143d9cb89
15296c62e
hex1c92c35

29961269 has 8 divisors (see below), whose sum is σ = 32481792. Its totient is φ = 27471600.

The previous prime is 29961251. The next prime is 29961289. The reversal of 29961269 is 96216992.

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

It is not a de Polignac number, because 29961269 - 28 = 29961013 is a prime.

It is a super-2 number, since 2×299612692 = 1795355280180722, 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 (29961229) 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, 5669 + ... + 9594.

It is an arithmetic number, because the mean of its divisors is an integer number (4060224).

Almost surely, 229961269 is an apocalyptic number.

It is an amenable number.

29961269 is a deficient number, since it is larger than the sum of its proper divisors (2520523).

29961269 is a wasteful number, since it uses less digits than its factorization.

29961269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15427.

The product of its digits is 104976, while the sum is 44.

The square root of 29961269 is about 5473.6887927612. The cubic root of 29961269 is about 310.5894749846.

The spelling of 29961269 in words is "twenty-nine million, nine hundred sixty-one thousand, two hundred sixty-nine".

Divisors: 1 13 151 1963 15263 198419 2304713 29961269