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3072069 = 3271121331
BaseRepresentation
bin1011101110000001000101
312210002002100
423232001011
51241301234
6145502313
735053320
oct13560105
95702070
103072069
111809100
121041999
138373c0
1459d7b7
1540a399
hex2ee045

3072069 has 72 divisors (see below), whose sum is σ = 6196736. Its totient is φ = 1425600.

The previous prime is 3072067. The next prime is 3072101. The reversal of 3072069 is 9602703.

It is not a de Polignac number, because 3072069 - 21 = 3072067 is a prime.

It is a super-2 number, since 2×30720692 = 18875215881522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3072067) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 99084 + ... + 99114.

Almost surely, 23072069 is an apocalyptic number.

3072069 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3072069 is an abundant number, since it is smaller than the sum of its proper divisors (3124667).

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

3072069 is a wasteful number, since it uses less digits than its factorization.

3072069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 3072069 is about 1752.7318676854. The cubic root of 3072069 is about 145.3707357979.

The spelling of 3072069 in words is "three million, seventy-two thousand, sixty-nine".

Divisors: 1 3 7 9 11 13 21 31 33 39 63 77 91 93 99 117 121 143 217 231 273 279 341 363 403 429 651 693 819 847 1001 1023 1089 1209 1287 1573 1953 2387 2541 2821 3003 3069 3627 3751 4433 4719 7161 7623 8463 9009 11011 11253 13299 14157 21483 25389 26257 31031 33033 33759 39897 48763 78771 93093 99099 146289 236313 279279 341341 438867 1024023 3072069