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142668960 = 2535742461
BaseRepresentation
bin10001000000011…
…11010010100000
3100221110100000120
420200033102200
5243010401320
622053520240
73351444330
oct1040172240
9327410016
10142668960
1173595335
123b943080
1323733105
1414d3b0c0
15c7d2440
hex880f4a0

142668960 has 96 divisors (see below), whose sum is σ = 513620352. Its totient is φ = 32609280.

The previous prime is 142668919. The next prime is 142668973. The reversal of 142668960 is 69866241.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17871 + ... + 24590.

It is an arithmetic number, because the mean of its divisors is an integer number (5350212).

Almost surely, 2142668960 is an apocalyptic number.

142668960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142668960 is an abundant number, since it is smaller than the sum of its proper divisors (370951392).

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

142668960 is a wasteful number, since it uses less digits than its factorization.

142668960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42486 (or 42478 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 142668960 is about 11944.4112454319. The cubic root of 142668960 is about 522.5283181770.

The spelling of 142668960 in words is "one hundred forty-two million, six hundred sixty-eight thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 70 80 84 96 105 112 120 140 160 168 210 224 240 280 336 420 480 560 672 840 1120 1680 3360 42461 84922 127383 169844 212305 254766 297227 339688 424610 509532 594454 636915 679376 849220 891681 1019064 1188908 1273830 1358752 1486135 1698440 1783362 2038128 2377816 2547660 2972270 3396880 3566724 4076256 4458405 4755632 5095320 5944540 6793760 7133448 8916810 9511264 10190640 11889080 14266896 17833620 20381280 23778160 28533792 35667240 47556320 71334480 142668960