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29870797 = 117337199
BaseRepresentation
bin111000111110…
…0101011001101
32002012121000211
41301330223031
530121331142
62544122421
7511616605
oct161745315
962177024
1029870797
1115952410
12a006411
13625b238
143d77c05
152950917
hex1c7cacd

29870797 has 8 divisors (see below), whose sum is σ = 33033600. Its totient is φ = 26782560.

The previous prime is 29870791. The next prime is 29870807. The reversal of 29870797 is 79707892.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-29870797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29870797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29870791) 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, 17797 + ... + 19402.

It is an arithmetic number, because the mean of its divisors is an integer number (4129200).

Almost surely, 229870797 is an apocalyptic number.

It is an amenable number.

29870797 is a deficient number, since it is larger than the sum of its proper divisors (3162803).

29870797 is a wasteful number, since it uses less digits than its factorization.

29870797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37283.

The product of its (nonzero) digits is 444528, while the sum is 49.

The square root of 29870797 is about 5465.4182822543. The cubic root of 29870797 is about 310.2765378384.

The spelling of 29870797 in words is "twenty-nine million, eight hundred seventy thousand, seven hundred ninety-seven".

Divisors: 1 11 73 803 37199 409189 2715527 29870797