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142930002 = 2331176597
BaseRepresentation
bin10001000010011…
…11000001010010
3100221221121002210
420201033001102
5243042230002
622103252550
73353612355
oct1041170122
9327847083
10142930002
1173753476
123ba4a156
13237c4b87
1414da829c
15c83496c
hex884f052

142930002 has 16 divisors (see below), whose sum is σ = 286782912. Its totient is φ = 47489520.

The previous prime is 142929967. The next prime is 142930003. The reversal of 142930002 is 200039241.

It is a super-3 number, since 3×1429300023 (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (142930003) 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, 36433 + ... + 40164.

It is an arithmetic number, because the mean of its divisors is an integer number (17923932).

Almost surely, 2142930002 is an apocalyptic number.

142930002 is an abundant number, since it is smaller than the sum of its proper divisors (143852910).

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

142930002 is a wasteful number, since it uses less digits than its factorization.

142930002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76913.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 142930002 is about 11955.3336214428. Note that the first 3 decimals coincide. The cubic root of 142930002 is about 522.8468147630.

Adding to 142930002 its reverse (200039241), we get a palindrome (342969243).

The spelling of 142930002 in words is "one hundred forty-two million, nine hundred thirty thousand, two".

Divisors: 1 2 3 6 311 622 933 1866 76597 153194 229791 459582 23821667 47643334 71465001 142930002