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142987596 = 223233471493
BaseRepresentation
bin10001000010111…
…01000101001100
3100222001112002220
420201131011030
5243101100341
622104415340
73354242313
oct1041350514
9328045086
10142987596
1173792774
123ba77550
132381515b
1414dc127a
15c846a66
hex885d14c

142987596 has 48 divisors (see below), whose sum is σ = 349380864. Its totient is φ = 45428416.

The previous prime is 142987589. The next prime is 142987609. The reversal of 142987596 is 695789241.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 95026 + ... + 96518.

It is an arithmetic number, because the mean of its divisors is an integer number (7278768).

Almost surely, 2142987596 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 142987596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174690432).

142987596 is an abundant number, since it is smaller than the sum of its proper divisors (206393268).

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

142987596 is a wasteful number, since it uses less digits than its factorization.

142987596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870 (or 1868 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 51.

The square root of 142987596 is about 11957.7420945595. The cubic root of 142987596 is about 522.9170328073.

The spelling of 142987596 in words is "one hundred forty-two million, nine hundred eighty-seven thousand, five hundred ninety-six".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 347 694 1041 1388 1493 2082 2986 4164 4479 5972 7981 8958 15962 17916 23943 31924 34339 47886 68678 95772 103017 137356 206034 412068 518071 1036142 1554213 2072284 3108426 6216852 11915633 23831266 35746899 47662532 71493798 142987596