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172271040013 = 17311092998991
BaseRepresentation
bin1010000001110000100…
…1110111011000001101
3121110122212100120100101
42200130021313120031
510310302341240023
6211050142131101
715306015452032
oct2403411673015
9543585316311
10172271040013
1167072569146
1229479280a91
13133255cc747
1484a3527389
154733deb1ad
hex281c27760d

172271040013 has 16 divisors (see below), whose sum is σ = 190016133120. Its totient is φ = 155467641600.

The previous prime is 172271040001. The next prime is 172271040023. The reversal of 172271040013 is 310040172271.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-172271040013 is a prime.

It is a super-2 number, since 2×1722710400132 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172271040023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1442053 + ... + 1556938.

It is an arithmetic number, because the mean of its divisors is an integer number (11876008320).

Almost surely, 2172271040013 is an apocalyptic number.

It is an amenable number.

172271040013 is a deficient number, since it is larger than the sum of its proper divisors (17745093107).

172271040013 is a wasteful number, since it uses less digits than its factorization.

172271040013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999148.

The product of its (nonzero) digits is 2352, while the sum is 28.

The spelling of 172271040013 in words is "one hundred seventy-two billion, two hundred seventy-one million, forty thousand, thirteen".

Divisors: 1 17 31 109 527 1853 3379 57443 2998991 50982847 92968721 326890019 1580468257 5557130323 10133590589 172271040013