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129470510 = 2513995927
BaseRepresentation
bin1111011011110…
…01000000101110
3100000121210011002
413231321000232
5231121024020
620503000302
73131324021
oct755710056
9300553132
10129470510
11670a0124
1237439092
1320a91790
14132a31b8
15b576975
hex7b7902e

129470510 has 16 divisors (see below), whose sum is σ = 250973856. Its totient is φ = 47804448.

The previous prime is 129470491. The next prime is 129470513. The reversal of 129470510 is 15074921.

It is a super-2 number, since 2×1294705102 = 33525225919320200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129470513) 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, 497834 + ... + 498093.

It is an arithmetic number, because the mean of its divisors is an integer number (15685866).

Almost surely, 2129470510 is an apocalyptic number.

129470510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129470510 is a deficient number, since it is larger than the sum of its proper divisors (121503346).

129470510 is a wasteful number, since it uses less digits than its factorization.

129470510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995947.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 129470510 is about 11378.5108867549. The cubic root of 129470510 is about 505.8909996587.

The spelling of 129470510 in words is "one hundred twenty-nine million, four hundred seventy thousand, five hundred ten".

Divisors: 1 2 5 10 13 26 65 130 995927 1991854 4979635 9959270 12947051 25894102 64735255 129470510