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129253883 = 11137199431
BaseRepresentation
bin1111011010001…
…00000111111011
3100000012202222212
413231010013323
5231042111013
620454205335
73126432323
oct755040773
9300182885
10129253883
1166a623a0
123735384b
1320a16cb5
1413248283
15b5326a8
hex7b441fb

129253883 has 16 divisors (see below), whose sum is σ = 143078400. Its totient is φ = 115790400.

The previous prime is 129253879. The next prime is 129253889. The reversal of 129253883 is 388352921.

It is not a de Polignac number, because 129253883 - 22 = 129253879 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 129253883.

It is not an unprimeable number, because it can be changed into a prime (129253889) 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, 299678 + ... + 300108.

It is an arithmetic number, because the mean of its divisors is an integer number (8942400).

Almost surely, 2129253883 is an apocalyptic number.

129253883 is a deficient number, since it is larger than the sum of its proper divisors (13824517).

129253883 is a wasteful number, since it uses less digits than its factorization.

129253883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778.

The product of its digits is 103680, while the sum is 41.

The square root of 129253883 is about 11368.9877737642. The cubic root of 129253883 is about 505.6086938595.

The spelling of 129253883 in words is "one hundred twenty-nine million, two hundred fifty-three thousand, eight hundred eighty-three".

Divisors: 1 11 137 199 431 1507 2189 4741 27263 59047 85769 299893 649517 943459 11750353 129253883