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42672988 = 22313771131
BaseRepresentation
bin1010001011001…
…0001101011100
32222022000100001
42202302031130
541411013423
64122344044
71025500021
oct242621534
988260301
1042672988
11220a6936
121235b024
138ac13b7
14594b548
153b2dcad
hex28b235c

42672988 has 48 divisors (see below), whose sum is σ = 80898048. Its totient is φ = 19656000.

The previous prime is 42672979. The next prime is 42673021. The reversal of 42672988 is 88927624.

It is a super-3 number, since 3×426729883 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325683 + ... + 325813.

It is an arithmetic number, because the mean of its divisors is an integer number (1685376).

Almost surely, 242672988 is an apocalyptic number.

It is an amenable number.

42672988 is a deficient number, since it is larger than the sum of its proper divisors (38225060).

42672988 is a wasteful number, since it uses less digits than its factorization.

42672988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 272 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The square root of 42672988 is about 6532.4565057871. The cubic root of 42672988 is about 349.4494418964.

It can be divided in two parts, 42672 and 988, that added together give a triangular number (43660 = T295).

The spelling of 42672988 in words is "forty-two million, six hundred seventy-two thousand, nine hundred eighty-eight".

Divisors: 1 2 4 31 37 62 71 74 124 131 142 148 262 284 524 1147 2201 2294 2627 4061 4402 4588 4847 5254 8122 8804 9301 9694 10508 16244 18602 19388 37204 81437 150257 162874 288331 300514 325748 344137 576662 601028 688274 1153324 1376548 10668247 21336494 42672988