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38973825 = 33521129181
BaseRepresentation
bin1001010010101…
…1000110000001
32201100002001000
42110223012001
534434130300
63511202213
7652162212
oct224530601
981302030
1038973825
111aaaa680
1211076369
1380c7747
145267409
15364cc00
hex252b181

38973825 has 96 divisors (see below), whose sum is σ = 81244800. Its totient is φ = 18144000.

The previous prime is 38973791. The next prime is 38973829. The reversal of 38973825 is 52837983.

It is not a de Polignac number, because 38973825 - 217 = 38842753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

Its product of digits (362880) is a multiple of the sum of its prime factors (240).

It is not an unprimeable number, because it can be changed into a prime (38973829) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 215235 + ... + 215415.

It is an arithmetic number, because the mean of its divisors is an integer number (846300).

Almost surely, 238973825 is an apocalyptic number.

It is an amenable number.

38973825 is an abundant number, since it is smaller than the sum of its proper divisors (42270975).

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

38973825 is a wasteful number, since it uses less digits than its factorization.

38973825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 229 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 38973825 is about 6242.9019694370. The cubic root of 38973825 is about 339.0452598354.

The spelling of 38973825 in words is "thirty-eight million, nine hundred seventy-three thousand, eight hundred twenty-five".

Divisors: 1 3 5 9 11 15 25 27 29 33 45 55 75 87 99 135 145 165 181 225 261 275 297 319 435 495 543 675 725 783 825 905 957 1305 1485 1595 1629 1991 2175 2475 2715 2871 3915 4525 4785 4887 5249 5973 6525 7425 7975 8145 8613 9955 13575 14355 15747 17919 19575 23925 24435 26245 29865 40725 43065 47241 49775 53757 57739 71775 78735 89595 122175 131225 141723 149325 173217 215325 236205 268785 288695 393675 447975 519651 708615 866085 1181025 1343925 1443475 1558953 2598255 3543075 4330425 7794765 12991275 38973825