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129106798 = 2215329983
BaseRepresentation
bin1111011001000…
…00001101101110
322222221022020021
413230200031232
5231022404143
620451112354
73125250442
oct754401556
9288838207
10129106798
1166971937
12372a26ba
1320995072
141320a822
15b503ced
hex7b2036e

129106798 has 8 divisors (see below), whose sum is σ = 193756608. Its totient is φ = 64521264.

The previous prime is 129106759. The next prime is 129106829. The reversal of 129106798 is 897601921.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10686 + ... + 19297.

It is an arithmetic number, because the mean of its divisors is an integer number (24219576).

Almost surely, 2129106798 is an apocalyptic number.

129106798 is a deficient number, since it is larger than the sum of its proper divisors (64649810).

129106798 is a wasteful number, since it uses less digits than its factorization.

129106798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32138.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 129106798 is about 11362.5172387108. The cubic root of 129106798 is about 505.4168345518.

The spelling of 129106798 in words is "one hundred twenty-nine million, one hundred six thousand, seven hundred ninety-eight".

Divisors: 1 2 2153 4306 29983 59966 64553399 129106798