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142426880 = 285111271
BaseRepresentation
bin10000111110101…
…00001100000000
3100221000000221122
420133110030000
5242430130010
622044411412
73346415501
oct1037241400
9327000848
10142426880
117343a472
123b846b68
1323679b7b
1414cb6ba8
15c785855
hex87d4300

142426880 has 36 divisors (see below), whose sum is σ = 341159952. Its totient is φ = 56970240.

The previous prime is 142426871. The next prime is 142426891. The reversal of 142426880 is 88624241.

It is a super-2 number, since 2×1424268802 = 40570832293068800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142426880.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54356 + ... + 56915.

Almost surely, 2142426880 is an apocalyptic number.

142426880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142426880 is an abundant number, since it is smaller than the sum of its proper divisors (198733072).

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

142426880 is an equidigital number, since it uses as much as digits as its factorization.

142426880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111292 (or 111278 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 142426880 is about 11934.2733335549. The cubic root of 142426880 is about 522.2326096889.

The spelling of 142426880 in words is "one hundred forty-two million, four hundred twenty-six thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 111271 222542 445084 556355 890168 1112710 1780336 2225420 3560672 4450840 7121344 8901680 14242688 17803360 28485376 35606720 71213440 142426880