Search a number
-
+
129949053 = 3134377489
BaseRepresentation
bin1111011111011…
…01110101111101
3100001112002120220
413233231311331
5231231332203
620521131553
73135356133
oct757556575
9301462526
10129949053
1167397713
1237629bb9
1320bcb540
1413389753
15b61d653
hex7bedd7d

129949053 has 16 divisors (see below), whose sum is σ = 190935360. Its totient is φ = 78107904.

The previous prime is 129949019. The next prime is 129949063. The reversal of 129949053 is 350949921.

It is not a de Polignac number, because 129949053 - 210 = 129948029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129948996 and 129949014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129949063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37068 + ... + 40421.

It is an arithmetic number, because the mean of its divisors is an integer number (11933460).

Almost surely, 2129949053 is an apocalyptic number.

129949053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

129949053 is a deficient number, since it is larger than the sum of its proper divisors (60986307).

129949053 is a wasteful number, since it uses less digits than its factorization.

129949053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77548.

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 129949053 is about 11399.5198583098. The cubic root of 129949053 is about 506.5135170683.

The spelling of 129949053 in words is "one hundred twenty-nine million, nine hundred forty-nine thousand, fifty-three".

Divisors: 1 3 13 39 43 129 559 1677 77489 232467 1007357 3022071 3332027 9996081 43316351 129949053