Search a number
-
+
29830941 = 327473507
BaseRepresentation
bin111000111001…
…0111100011101
32002010120100200
41301302330131
530114042231
62543214113
7511362450
oct161627435
962116320
1029830941
1115925478
129ba7339
13624605a
143d67497
152943be6
hex1c72f1d

29830941 has 12 divisors (see below), whose sum is σ = 49244832. Its totient is φ = 17046216.

The previous prime is 29830921. The next prime is 29830943. The reversal of 29830941 is 14903892.

It is not a de Polignac number, because 29830941 - 214 = 29814557 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 29830896 and 29830905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29830943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236691 + ... + 236816.

It is an arithmetic number, because the mean of its divisors is an integer number (4103736).

Almost surely, 229830941 is an apocalyptic number.

29830941 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

29830941 is a deficient number, since it is larger than the sum of its proper divisors (19413891).

29830941 is a wasteful number, since it uses less digits than its factorization.

29830941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473520 (or 473517 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 29830941 is about 5461.7708666695. The cubic root of 29830941 is about 310.1384778479.

The spelling of 29830941 in words is "twenty-nine million, eight hundred thirty thousand, nine hundred forty-one".

Divisors: 1 3 7 9 21 63 473507 1420521 3314549 4261563 9943647 29830941