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71357414870 = 2578312281827
BaseRepresentation
bin100001001110100111…
…0111011110111010110
320211012000120021000102
41002131032323313112
52132114444233440
652440421014102
75104206006260
oct1023516736726
9224160507012
1071357414870
1128298444a45
12119b5554332
136962735a11
14364d000b30
151cc9892b15
hex109d3bbdd6

71357414870 has 32 divisors (see below), whose sum is σ = 148560991488. Its totient is φ = 24170633568.

The previous prime is 71357414867. The next prime is 71357414893. The reversal of 71357414870 is 7841475317.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6135104 + ... + 6146723.

It is an arithmetic number, because the mean of its divisors is an integer number (4642530984).

Almost surely, 271357414870 is an apocalyptic number.

71357414870 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71357414870 is an abundant number, since it is smaller than the sum of its proper divisors (77203576618).

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

71357414870 is a wasteful number, since it uses less digits than its factorization.

71357414870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12281924.

The product of its (nonzero) digits is 658560, while the sum is 47.

The spelling of 71357414870 in words is "seventy-one billion, three hundred fifty-seven million, four hundred fourteen thousand, eight hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 83 166 415 581 830 1162 2905 5810 12281827 24563654 61409135 85972789 122818270 171945578 429863945 859727890 1019391641 2038783282 5096958205 7135741487 10193916410 14271482974 35678707435 71357414870