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142613248 = 282353457
BaseRepresentation
bin10001000000000…
…01101100000000
3100221100111121011
420200001230000
5243002110443
622052410304
73351123031
oct1040015400
9327314534
10142613248
1173557498
123b916994
132371394b
1414d24a88
15c7c0b9d
hex8801b00

142613248 has 72 divisors (see below), whose sum is σ = 303313248. Its totient is φ = 66772992.

The previous prime is 142613243. The next prime is 142613257. The reversal of 142613248 is 842316241.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (142613243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311836 + ... + 312292.

It is an arithmetic number, because the mean of its divisors is an integer number (4212684).

Almost surely, 2142613248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142613248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151656624).

142613248 is an abundant number, since it is smaller than the sum of its proper divisors (160700000).

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

142613248 is an equidigital number, since it uses as much as digits as its factorization.

142613248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 535 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 142613248 is about 11942.0788809989. The cubic root of 142613248 is about 522.4602938318.

Adding to 142613248 its reverse (842316241), we get a palindrome (984929489).

The spelling of 142613248 in words is "one hundred forty-two million, six hundred thirteen thousand, two hundred forty-eight".

Divisors: 1 2 4 8 16 23 32 46 53 64 92 106 128 184 212 256 368 424 457 736 848 914 1219 1472 1696 1828 2438 2944 3392 3656 4876 5888 6784 7312 9752 10511 13568 14624 19504 21022 24221 29248 39008 42044 48442 58496 78016 84088 96884 116992 156032 168176 193768 312064 336352 387536 557083 672704 775072 1114166 1345408 1550144 2228332 2690816 3100288 4456664 6200576 8913328 17826656 35653312 71306624 142613248