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142911802 = 2116495991
BaseRepresentation
bin10001000010010…
…10100100111010
3100221220200010201
420201022210322
5243041134202
622103032414
73353505325
oct1041124472
9327820121
10142911802
1173740830
123ba3b70a
13237b97c7
1414da17bc
15c82e387
hex884a93a

142911802 has 8 divisors (see below), whose sum is σ = 233855712. Its totient is φ = 64959900.

The previous prime is 142911799. The next prime is 142911803. The reversal of 142911802 is 208119241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (142911803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3247974 + ... + 3248017.

It is an arithmetic number, because the mean of its divisors is an integer number (29231964).

Almost surely, 2142911802 is an apocalyptic number.

142911802 is a deficient number, since it is larger than the sum of its proper divisors (90943910).

142911802 is a wasteful number, since it uses less digits than its factorization.

142911802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6496004.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 142911802 is about 11954.5724306643. The cubic root of 142911802 is about 522.8246215779.

It can be divided in two parts, 1429 and 11802, that added together give a palindrome (13231).

The spelling of 142911802 in words is "one hundred forty-two million, nine hundred eleven thousand, eight hundred two".

Divisors: 1 2 11 22 6495991 12991982 71455901 142911802