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106671431893 = 138579574673
BaseRepresentation
bin110001101011000011…
…1001110000011010101
3101012100010010012022211
41203112013032003111
53221430341310033
6121000522553421
710464263132155
oct1432607160325
9335303105284
10106671431893
114126a273684
1218810068871
13a09ca24590
14523d0cc765
152b94ca02cd
hex18d61ce0d5

106671431893 has 8 divisors (see below), whose sum is σ = 115010984088. Its totient is φ = 98351030784.

The previous prime is 106671431833. The next prime is 106671431941. The reversal of 106671431893 is 398134176601.

It can be written as a sum of positive squares in 4 ways, for example, as 13562232849 + 93109199044 = 116457^2 + 305138^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-106671431893 is a prime.

It is a super-2 number, since 2×1066714318932 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106671431803) 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, 4776196 + ... + 4798477.

It is an arithmetic number, because the mean of its divisors is an integer number (14376373011).

Almost surely, 2106671431893 is an apocalyptic number.

106671431893 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

106671431893 is a deficient number, since it is larger than the sum of its proper divisors (8339552195).

106671431893 is an equidigital number, since it uses as much as digits as its factorization.

106671431893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9575543.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 106671431893 in words is "one hundred six billion, six hundred seventy-one million, four hundred thirty-one thousand, eight hundred ninety-three".

Divisors: 1 13 857 11141 9574673 124470749 8205494761 106671431893