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142810752 = 273753129
BaseRepresentation
bin10001000001100…
…01111010000000
3100221201112112010
420200301322000
5243024421002
622100532520
73352604610
oct1040617200
9327645463
10142810752
1173681917
123b9b1140
1323782806
1414d76a40
15c80e46c
hex8831e80

142810752 has 64 divisors (see below), whose sum is σ = 433540800. Its totient is φ = 40802304.

The previous prime is 142810729. The next prime is 142810753. The reversal of 142810752 is 257018241.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (142810753) 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, 23877 + ... + 29252.

It is an arithmetic number, because the mean of its divisors is an integer number (6774075).

Almost surely, 2142810752 is an apocalyptic number.

142810752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142810752 is an abundant number, since it is smaller than the sum of its proper divisors (290730048).

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

142810752 is an equidigital number, since it uses as much as digits as its factorization.

142810752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53153 (or 53141 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 142810752 is about 11950.3452669787. The cubic root of 142810752 is about 522.7013663389.

Adding to 142810752 its reverse (257018241), we get a palindrome (399828993).

The spelling of 142810752 in words is "one hundred forty-two million, eight hundred ten thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 128 168 192 224 336 384 448 672 896 1344 2688 53129 106258 159387 212516 318774 371903 425032 637548 743806 850064 1115709 1275096 1487612 1700128 2231418 2550192 2975224 3400256 4462836 5100384 5950448 6800512 8925672 10200768 11900896 17851344 20401536 23801792 35702688 47603584 71405376 142810752