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3980931 = 32694933
BaseRepresentation
bin1111001011111010000011
321111020210220
433023322003
52004342211
6221154123
745560133
oct17137203
97436726
103980931
112279a29
1213bb943
13a94ca6
14758ac3
15539806
hex3cbe83

3980931 has 8 divisors (see below), whose sum is σ = 5328720. Its totient is φ = 2643552.

The previous prime is 3980891. The next prime is 3980957. The reversal of 3980931 is 1390893.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3980931 - 29 = 3980419 is a prime.

It is a super-2 number, since 2×39809312 = 31695623253522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3980892 and 3980901.

It is not an unprimeable number, because it can be changed into a prime (3980971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1660 + ... + 3273.

It is an arithmetic number, because the mean of its divisors is an integer number (666090).

Almost surely, 23980931 is an apocalyptic number.

3980931 is a deficient number, since it is larger than the sum of its proper divisors (1347789).

3980931 is a wasteful number, since it uses less digits than its factorization.

3980931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5205.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 3980931 is about 1995.2270547484. The cubic root of 3980931 is about 158.4874520280.

The spelling of 3980931 in words is "three million, nine hundred eighty thousand, nine hundred thirty-one".

Divisors: 1 3 269 807 4933 14799 1326977 3980931