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142107900 = 223521143063
BaseRepresentation
bin10000111100001…
…10010011111100
3100220101211101120
420132012103330
5242334423100
622033510540
73343616514
oct1036062374
9326354346
10142107900
1173241850
123b712450
132359791c
1414c32844
15c7210a0
hex87864fc

142107900 has 72 divisors (see below), whose sum is σ = 448554624. Its totient is φ = 34449600.

The previous prime is 142107887. The next prime is 142107907. The reversal of 142107900 is 9701241.

142107900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142107907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18232 + ... + 24831.

Almost surely, 2142107900 is an apocalyptic number.

142107900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142107900 is an abundant number, since it is smaller than the sum of its proper divisors (306446724).

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

142107900 is a wasteful number, since it uses less digits than its factorization.

142107900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43091 (or 43084 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 142107900 is about 11920.9018115242. The cubic root of 142107900 is about 521.8424532991.

The spelling of 142107900 in words is "one hundred forty-two million, one hundred seven thousand, nine hundred".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 25 30 33 44 50 55 60 66 75 100 110 132 150 165 220 275 300 330 550 660 825 1100 1650 3300 43063 86126 129189 172252 215315 258378 430630 473693 516756 645945 861260 947386 1076575 1291890 1421079 1894772 2153150 2368465 2583780 2842158 3229725 4306300 4736930 5684316 6459450 7105395 9473860 11842325 12918900 14210790 23684650 28421580 35526975 47369300 71053950 142107900