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129958955001 = 3257559250871
BaseRepresentation
bin111100100001000101…
…0000100011111111001
3110102110001200221110200
41321002022010133321
54112123443030001
6135411411232413
712250334614431
oct1710212043771
9412401627420
10129958955001
115012a495447
122122aba8709
13c341533455
14640bc632c1
1535a9457086
hex1e422847f9

129958955001 has 12 divisors (see below), whose sum is σ = 187722500160. Its totient is φ = 86637452760.

The previous prime is 129958954967. The next prime is 129958955023. The reversal of 129958955001 is 100559859921.

129958955001 is a `hidden beast` number, since 1 + 2 + 9 + 9 + 5 + 89 + 550 + 0 + 1 = 666.

It is not a de Polignac number, because 129958955001 - 210 = 129958953977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (129958955041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 392596 + ... + 643466.

It is an arithmetic number, because the mean of its divisors is an integer number (15643541680).

Almost surely, 2129958955001 is an apocalyptic number.

It is an amenable number.

129958955001 is a deficient number, since it is larger than the sum of its proper divisors (57763545159).

129958955001 is a wasteful number, since it uses less digits than its factorization.

129958955001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308436 (or 308433 counting only the distinct ones).

The product of its (nonzero) digits is 1458000, while the sum is 54.

The spelling of 129958955001 in words is "one hundred twenty-nine billion, nine hundred fifty-eight million, nine hundred fifty-five thousand, one".

Divisors: 1 3 9 57559 172677 250871 518031 752613 2257839 14439883889 43319651667 129958955001