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142756000 = 255389401
BaseRepresentation
bin10001000001001…
…00100010100000
3100221121202102021
420200210202200
5243021143000
622055431224
73352256152
oct1040444240
9327552367
10142756000
1173644772
123b985514
132376390a
1414d60ad2
15c7ed11a
hex88248a0

142756000 has 96 divisors (see below), whose sum is σ = 355577040. Its totient is φ = 56320000.

The previous prime is 142755983. The next prime is 142756013. The reversal of 142756000 is 657241.

It can be written as a sum of positive squares in 8 ways, for example, as 17405584 + 125350416 = 4172^2 + 11196^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355800 + ... + 356200.

Almost surely, 2142756000 is an apocalyptic number.

142756000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142756000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177788520).

142756000 is an abundant number, since it is smaller than the sum of its proper divisors (212821040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142756000 is an equidigital number, since it uses as much as digits as its factorization.

142756000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 142756000 is about 11948.0542348953. The cubic root of 142756000 is about 522.6345585695.

The spelling of 142756000 in words is "one hundred forty-two million, seven hundred fifty-six thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 89 100 125 160 178 200 250 356 400 401 445 500 712 800 802 890 1000 1424 1604 1780 2000 2005 2225 2848 3208 3560 4000 4010 4450 6416 7120 8020 8900 10025 11125 12832 14240 16040 17800 20050 22250 32080 35600 35689 40100 44500 50125 64160 71200 71378 80200 89000 100250 142756 160400 178000 178445 200500 285512 320800 356000 356890 401000 571024 713780 802000 892225 1142048 1427560 1604000 1784450 2855120 3568900 4461125 5710240 7137800 8922250 14275600 17844500 28551200 35689000 71378000 142756000