Search a number
-
+
39001081 = 77197809
BaseRepresentation
bin1001010011000…
…1101111111001
32201101110102111
42110301233321
534441013311
63511532321
7652334530
oct224615771
981343374
1039001081
11200190a9
121108a0a1
138106c82
145273317
153655d21
hex2531bf9

39001081 has 16 divisors (see below), whose sum is σ = 45722880. Its totient is φ = 32578560.

The previous prime is 39001073. The next prime is 39001087. The reversal of 39001081 is 18010093.

It is not a de Polignac number, because 39001081 - 23 = 39001073 is a prime.

It is a super-2 number, since 2×390010812 = 3042168638337122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39001087) 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, 47805 + ... + 48613.

It is an arithmetic number, because the mean of its divisors is an integer number (2857680).

Almost surely, 239001081 is an apocalyptic number.

It is an amenable number.

39001081 is a deficient number, since it is larger than the sum of its proper divisors (6721799).

39001081 is an equidigital number, since it uses as much as digits as its factorization.

39001081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 39001081 is about 6245.0845470658. The cubic root of 39001081 is about 339.1242775200.

The spelling of 39001081 in words is "thirty-nine million, one thousand, eighty-one".

Divisors: 1 7 71 97 497 679 809 5663 6887 48209 57439 78473 402073 549311 5571583 39001081