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3472989 = 31389051
BaseRepresentation
bin1101001111111001011101
320112110001020
431033321131
51342113424
6202234353
741343222
oct15177135
96473036
103472989
111a62343
1211b59b9
13947a30
14665949
15489079
hex34fe5d

3472989 has 8 divisors (see below), whose sum is σ = 4986912. Its totient is φ = 2137200.

The previous prime is 3472979. The next prime is 3472993. The reversal of 3472989 is 9892743.

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

It is not a de Polignac number, because 3472989 - 25 = 3472957 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 3472989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3472949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44487 + ... + 44564.

It is an arithmetic number, because the mean of its divisors is an integer number (623364).

Almost surely, 23472989 is an apocalyptic number.

3472989 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3472989 is a deficient number, since it is larger than the sum of its proper divisors (1513923).

3472989 is a wasteful number, since it uses less digits than its factorization.

3472989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89067.

The product of its digits is 108864, while the sum is 42.

The square root of 3472989 is about 1863.5957179603. The cubic root of 3472989 is about 151.4378618705.

Adding to 3472989 its product of digits (108864), we get a palindrome (3581853).

The spelling of 3472989 in words is "three million, four hundred seventy-two thousand, nine hundred eighty-nine".

Divisors: 1 3 13 39 89051 267153 1157663 3472989