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107020671557 = 1711355710917
BaseRepresentation
bin110001110101011101…
…1011101101001000101
3101020020110021102002012
41203222323131221011
53223134242442212
6121055320224005
710506033461462
oct1435273355105
9336213242065
10107020671557
11414294195a8
12188a900b005
13a1271a2677
14527363c669
152bb5788922
hex18eaedda45

107020671557 has 8 divisors (see below), whose sum is σ = 114318803736. Its totient is φ = 99833961472.

The previous prime is 107020671553. The next prime is 107020671677. The reversal of 107020671557 is 755176020701.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 74666881 + 106946004676 = 8641^2 + 327026^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 107020671557 - 22 = 107020671553 is a prime.

It is a super-2 number, since 2×1070206715572 (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 (107020671551) 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, 27853538 + ... + 27857379.

It is an arithmetic number, because the mean of its divisors is an integer number (14289850467).

Almost surely, 2107020671557 is an apocalyptic number.

107020671557 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

107020671557 is a deficient number, since it is larger than the sum of its proper divisors (7298132179).

107020671557 is a wasteful number, since it uses less digits than its factorization.

107020671557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55711047.

The product of its (nonzero) digits is 102900, while the sum is 41.

The spelling of 107020671557 in words is "one hundred seven billion, twenty million, six hundred seventy-one thousand, five hundred fifty-seven".

Divisors: 1 17 113 1921 55710917 947085589 6295333621 107020671557