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161103356386 = 2756920223871
BaseRepresentation
bin1001011000001010000…
…0100010000111100010
3120101211120101110102021
42112002200202013202
510114414424401021
6202002044012054
714432201635450
oct2260240420742
9511746343367
10161103356386
1162361710145
122728123102a
1312265a2421b
147b242879d0
1542cd787c41
hex25828221e2

161103356386 has 16 divisors (see below), whose sum is σ = 276662568960. Its totient is φ = 68922948960.

The previous prime is 161103356383. The next prime is 161103356387. The reversal of 161103356386 is 683653301161.

It is not an unprimeable number, because it can be changed into a prime (161103356383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10103970 + ... + 10119901.

It is an arithmetic number, because the mean of its divisors is an integer number (17291410560).

Almost surely, 2161103356386 is an apocalyptic number.

161103356386 is a deficient number, since it is larger than the sum of its proper divisors (115559212574).

161103356386 is a wasteful number, since it uses less digits than its factorization.

161103356386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20224449.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 161103356386 in words is "one hundred sixty-one billion, one hundred three million, three hundred fifty-six thousand, three hundred eighty-six".

Divisors: 1 2 7 14 569 1138 3983 7966 20223871 40447742 141567097 283134194 11507382599 23014765198 80551678193 161103356386