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4947969 = 313172439
BaseRepresentation
bin10010111000000000000001
3100022101100010
4102320000001
52231313334
6254015133
760025365
oct22700001
910271303
104947969
11287a534
1217a74a9
1310431c0
1492b2a5
1567b0e9
hex4b8001

4947969 has 24 divisors (see below), whose sum is σ = 7564480. Its totient is φ = 2859264.

The previous prime is 4947959. The next prime is 4947979. The reversal of 4947969 is 9697494.

It is an interprime number because it is at equal distance from previous prime (4947959) and next prime (4947979).

It is not a de Polignac number, because 4947969 - 27 = 4947841 is a prime.

It is a super-2 number, since 2×49479692 = 48964794449922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

4947969 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4947949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11052 + ... + 11490.

It is a Proth number, since it is equal to 151 ⋅ 215 + 1 and 151 < 215.

Almost surely, 24947969 is an apocalyptic number.

It is an amenable number.

4947969 is a deficient number, since it is larger than the sum of its proper divisors (2616511).

4947969 is a wasteful number, since it uses less digits than its factorization.

4947969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 472 counting only the distinct ones).

The product of its digits is 489888, while the sum is 48.

The square root of 4947969 is about 2224.4030659932. The cubic root of 4947969 is about 170.4023801713.

The spelling of 4947969 in words is "four million, nine hundred forty-seven thousand, nine hundred sixty-nine".

Divisors: 1 3 13 17 39 51 221 289 439 663 867 1317 3757 5707 7463 11271 17121 22389 97019 126871 291057 380613 1649323 4947969