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142686168850 = 25217716433677
BaseRepresentation
bin1000010011100011000…
…0100010011100010010
3111122022001012101200101
42010320300202130102
54314210124400400
6145314335443014
713210616265241
oct2047060423422
9448261171611
10142686168850
11555706935a5
12237a138646a
13105bc245114
146c982a0958
153aa197356a
hex2138c22712

142686168850 has 96 divisors (see below), whose sum is σ = 285486477696. Its totient is φ = 52863820800.

The previous prime is 142686168841. The next prime is 142686168853. The reversal of 142686168850 is 58861686241.

It is a junction number, because it is equal to n+sod(n) for n = 142686168791 and 142686168800.

It is not an unprimeable number, because it can be changed into a prime (142686168853) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38803212 + ... + 38806888.

It is an arithmetic number, because the mean of its divisors is an integer number (2973817476).

Almost surely, 2142686168850 is an apocalyptic number.

142686168850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142686168850 is an abundant number, since it is smaller than the sum of its proper divisors (142800308846).

142686168850 is a wasteful number, since it uses less digits than its factorization.

142686168850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4420 (or 4415 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 55.

The spelling of 142686168850 in words is "one hundred forty-two billion, six hundred eighty-six million, one hundred sixty-eight thousand, eight hundred fifty".

Divisors: 1 2 5 10 17 25 34 50 71 85 142 170 355 425 643 710 850 1207 1286 1775 2414 3215 3550 3677 6035 6430 7354 10931 12070 16075 18385 21862 30175 32150 36770 45653 54655 60350 62509 91306 91925 109310 125018 183850 228265 261067 273275 312545 456530 522134 546550 625090 776101 1141325 1305335 1552202 1562725 2282650 2364311 2610670 3125450 3880505 4438139 4728622 6526675 7761010 8876278 11821555 13053350 19402525 22190695 23643110 38805050 40193287 44381390 59107775 80386574 110953475 118215550 167866081 200966435 221906950 335732162 401932870 839330405 1004832175 1678660810 2009664350 2853723377 4196652025 5707446754 8393304050 14268616885 28537233770 71343084425 142686168850