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129745302 = 23137157841
BaseRepresentation
bin1111011101111…
…00000110010110
3100001010202002120
413232330012112
5231203322202
620512520410
73133550121
oct756740626
9301122076
10129745302
1167268625
1237550106
1320b5988b
14133353b8
15b5cd0bc
hex7bbc196

129745302 has 16 divisors (see below), whose sum is σ = 261386352. Its totient is φ = 42932480.

The previous prime is 129745267. The next prime is 129745303. The reversal of 129745302 is 203547921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129745303) 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, 78099 + ... + 79742.

It is an arithmetic number, because the mean of its divisors is an integer number (16336647).

Almost surely, 2129745302 is an apocalyptic number.

129745302 is an abundant number, since it is smaller than the sum of its proper divisors (131641050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129745302 is a wasteful number, since it uses less digits than its factorization.

129745302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157983.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 129745302 is about 11390.5795287158. The cubic root of 129745302 is about 506.2486527018.

The spelling of 129745302 in words is "one hundred twenty-nine million, seven hundred forty-five thousand, three hundred two".

Divisors: 1 2 3 6 137 274 411 822 157841 315682 473523 947046 21624217 43248434 64872651 129745302