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129764095 = 5149317383
BaseRepresentation
bin1111011110000…
…00101011111111
3100001011200212121
413233000223333
5231204422340
620513143411
73133655656
oct757005377
9301150777
10129764095
116728075a
123755ab67
1320b652b6
141333c19d
15b5d394a
hex7bc0aff

129764095 has 8 divisors (see below), whose sum is σ = 155830176. Its totient is φ = 103735776.

The previous prime is 129764083. The next prime is 129764099. The reversal of 129764095 is 590467921.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 129764095 - 219 = 129239807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129764099) 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, 1227 + ... + 16156.

It is an arithmetic number, because the mean of its divisors is an integer number (19478772).

Almost surely, 2129764095 is an apocalyptic number.

129764095 is a deficient number, since it is larger than the sum of its proper divisors (26066081).

129764095 is a wasteful number, since it uses less digits than its factorization.

129764095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18881.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 129764095 is about 11391.4044349237. The cubic root of 129764095 is about 506.2730941047.

It can be divided in two parts, 12976 and 4095, that added together give a palindrome (17071).

The spelling of 129764095 in words is "one hundred twenty-nine million, seven hundred sixty-four thousand, ninety-five".

Divisors: 1 5 1493 7465 17383 86915 25952819 129764095