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161453210107 = 7151198776873
BaseRepresentation
bin1001011001011101011…
…1000111100111111011
3120102201221200212111111
42112113113013213323
510121124010210412
6202100502341151
714443650433240
oct2262727074773
9512657625444
10161453210107
1162521145452
122735a42a7b7
13122c0358967
147b589175c7
1542ee3432a7
hex25975c79fb

161453210107 has 16 divisors (see below), whose sum is σ = 185835822592. Its totient is φ = 137401012800.

The previous prime is 161453210081. The next prime is 161453210119. The reversal of 161453210107 is 701012354161.

It is a cyclic number.

It is not a de Polignac number, because 161453210107 - 219 = 161452685819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161453210167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2061823 + ... + 2138695.

It is an arithmetic number, because the mean of its divisors is an integer number (11614738912).

Almost surely, 2161453210107 is an apocalyptic number.

161453210107 is a deficient number, since it is larger than the sum of its proper divisors (24382612485).

161453210107 is a wasteful number, since it uses less digits than its factorization.

161453210107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79018.

The product of its (nonzero) digits is 5040, while the sum is 31.

Adding to 161453210107 its reverse (701012354161), we get a palindrome (862465564268).

The spelling of 161453210107 in words is "one hundred sixty-one billion, four hundred fifty-three million, two hundred ten thousand, one hundred seven".

Divisors: 1 7 151 1057 1987 13909 76873 300037 538111 2100259 11607823 81254761 152746651 1069226557 23064744301 161453210107