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85555540154 = 27193119752667
BaseRepresentation
bin100111110101110000…
…0011111000010111010
322011211111211202101102
41033223200133002322
52400204204241104
6103145332051402
76116101043450
oct1175340370272
9264744752342
1085555540154
1133313965687
12146b8463b62
1380b60c3796
1441d892c9d0
15235b0aea1e
hex13eb81f0ba

85555540154 has 64 divisors (see below), whose sum is σ = 160178135040. Its totient is φ = 33445016640.

The previous prime is 85555540151. The next prime is 85555540181. The reversal of 85555540154 is 45104555558.

It is a junction number, because it is equal to n+sod(n) for n = 85555540099 and 85555540108.

It is not an unprimeable number, because it can be changed into a prime (85555540151) 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, 1598129 + ... + 1650795.

It is an arithmetic number, because the mean of its divisors is an integer number (2502783360).

Almost surely, 285555540154 is an apocalyptic number.

85555540154 is a deficient number, since it is larger than the sum of its proper divisors (74622594886).

85555540154 is a wasteful number, since it uses less digits than its factorization.

85555540154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52923.

The product of its (nonzero) digits is 2000000, while the sum is 47.

The spelling of 85555540154 in words is "eighty-five billion, five hundred fifty-five million, five hundred forty thousand, one hundred fifty-four".

Divisors: 1 2 7 14 19 31 38 62 133 197 217 266 394 434 589 1178 1379 2758 3743 4123 6107 7486 8246 12214 26201 42749 52402 52667 85498 105334 116033 232066 368669 737338 812231 1000673 1624462 1632677 2001346 3265354 7004711 10375399 11428739 14009422 20750798 22857478 31020863 62041726 72627793 145255586 197132581 217146041 321637369 394265162 434292082 643274738 1379928067 2251461583 2759856134 4502923166 6111110011 12222220022 42777770077 85555540154