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129468963 = 31329114473
BaseRepresentation
bin1111011011110…
…00101000100011
3100000121201000210
413231320220203
5231121001323
620502545203
73131316351
oct755705043
9300551023
10129468963
1167099a48
1237438203
1320a90b70
14132a27d1
15b576293
hex7b78a23

129468963 has 16 divisors (see below), whose sum is σ = 192316320. Its totient is φ = 76925184.

The previous prime is 129468949. The next prime is 129469009. The reversal of 129468963 is 369864921.

It is not a de Polignac number, because 129468963 - 24 = 129468947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129468943) 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, 56106 + ... + 58367.

It is an arithmetic number, because the mean of its divisors is an integer number (12019770).

Almost surely, 2129468963 is an apocalyptic number.

129468963 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

129468963 is a deficient number, since it is larger than the sum of its proper divisors (62847357).

129468963 is a wasteful number, since it uses less digits than its factorization.

129468963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114518.

The product of its digits is 559872, while the sum is 48.

The square root of 129468963 is about 11378.4429075335. The cubic root of 129468963 is about 505.8889847430. Note that the first 3 decimals are identical.

The spelling of 129468963 in words is "one hundred twenty-nine million, four hundred sixty-eight thousand, nine hundred sixty-three".

Divisors: 1 3 13 29 39 87 377 1131 114473 343419 1488149 3319717 4464447 9959151 43156321 129468963