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106385091897 = 3719269991187
BaseRepresentation
bin110001100010100001…
…0111010110100111001
3101011121011022121200210
41203011002322310321
53220334040420042
6120512253421333
710454215234530
oct1430502726471
9334534277623
10106385091897
114113267a157
121875019a849
13a0555ca226
145213073317
152b79a8da9c
hex18c50bad39

106385091897 has 32 divisors (see below), whose sum is σ = 171277286400. Its totient is φ = 57377775168.

The previous prime is 106385091889. The next prime is 106385091913. The reversal of 106385091897 is 798190583601.

It is not a de Polignac number, because 106385091897 - 23 = 106385091889 is a prime.

It is a super-2 number, since 2×1063850918972 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (106385091887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 388263 + ... + 602924.

It is an arithmetic number, because the mean of its divisors is an integer number (5352415200).

Almost surely, 2106385091897 is an apocalyptic number.

It is an amenable number.

106385091897 is a deficient number, since it is larger than the sum of its proper divisors (64892194503).

106385091897 is a wasteful number, since it uses less digits than its factorization.

106385091897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991485.

The product of its (nonzero) digits is 3265920, while the sum is 57.

The spelling of 106385091897 in words is "one hundred six billion, three hundred eighty-five million, ninety-one thousand, eight hundred ninety-seven".

Divisors: 1 3 7 19 21 57 133 269 399 807 1883 5111 5649 15333 35777 107331 991187 2973561 6938309 18832553 20814927 56497659 131827871 266629303 395483613 799887909 1866405121 5065956757 5599215363 15197870271 35461697299 106385091897