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4142988 = 223419673
BaseRepresentation
bin1111110011011110001100
321210111010000
433303132030
52030033423
6224444300
750133453
oct17633614
97714100
104142988
11237a763
121479690
13b20995
1479bb9a
1556c843
hex3f378c

4142988 has 60 divisors (see below), whose sum is σ = 11417560. Its totient is φ = 1306368.

The previous prime is 4142947. The next prime is 4142989. The reversal of 4142988 is 8892414.

It is a super-3 number, since 3×41429883 (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4142989) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5820 + ... + 6492.

Almost surely, 24142988 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 4142988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5708780).

4142988 is an abundant number, since it is smaller than the sum of its proper divisors (7274572).

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

4142988 is a wasteful number, since it uses less digits than its factorization.

4142988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708 (or 697 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 4142988 is about 2035.4331234408. The cubic root of 4142988 is about 160.6094981684.

The spelling of 4142988 in words is "four million, one hundred forty-two thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 18 19 27 36 38 54 57 76 81 108 114 162 171 228 324 342 513 673 684 1026 1346 1539 2019 2052 2692 3078 4038 6057 6156 8076 12114 12787 18171 24228 25574 36342 38361 51148 54513 72684 76722 109026 115083 153444 218052 230166 345249 460332 690498 1035747 1380996 2071494 4142988