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8072988 = 2237118737
BaseRepresentation
bin11110110010111100011100
3120012011001120
4132302330130
54031313423
6445010540
7125422260
oct36627434
916164046
108072988
1146143a0
122853a50
131898721
1411020a0
15a96ee3
hex7b2f1c

8072988 has 48 divisors (see below), whose sum is σ = 23487744. Its totient is φ = 2096640.

The previous prime is 8072983. The next prime is 8073001. The reversal of 8072988 is 8892708.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8072983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3445 + ... + 5292.

It is an arithmetic number, because the mean of its divisors is an integer number (489328).

Almost surely, 28072988 is an apocalyptic number.

It is an amenable number.

8072988 is an abundant number, since it is smaller than the sum of its proper divisors (15414756).

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

8072988 is a wasteful number, since it uses less digits than its factorization.

8072988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8762 (or 8760 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 8072988 is about 2841.3004065040. The cubic root of 8072988 is about 200.6063929134.

The spelling of 8072988 in words is "eight million, seventy-two thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 84 132 154 231 308 462 924 8737 17474 26211 34948 52422 61159 96107 104844 122318 183477 192214 244636 288321 366954 384428 576642 672749 733908 1153284 1345498 2018247 2690996 4036494 8072988