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23040369 = 3411191361
BaseRepresentation
bin101011111100…
…1000101110001
31121100120110000
41113321011301
521344242434
62141500213
7366561042
oct127710561
947316400
1023040369
1112007630
127871669
134a09271
1430ba8c9
152051b99
hex15f9171

23040369 has 40 divisors (see below), whose sum is σ = 39552480. Its totient is φ = 13219200.

The previous prime is 23040349. The next prime is 23040403. The reversal of 23040369 is 96304032.

It is not a de Polignac number, because 23040369 - 211 = 23038321 is a prime.

It is a super-2 number, since 2×230403692 = 1061717207312322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23040349) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16249 + ... + 17609.

It is an arithmetic number, because the mean of its divisors is an integer number (988812).

Almost surely, 223040369 is an apocalyptic number.

It is an amenable number.

23040369 is a deficient number, since it is larger than the sum of its proper divisors (16512111).

23040369 is a wasteful number, since it uses less digits than its factorization.

23040369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403 (or 1394 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 23040369 is about 4800.0384373461. The cubic root of 23040369 is about 284.5529834409.

It can be divided in two parts, 23040 and 369, that added together give a square (23409 = 1532).

The spelling of 23040369 in words is "twenty-three million, forty thousand, three hundred sixty-nine".

Divisors: 1 3 9 11 19 27 33 57 81 99 171 209 297 513 627 891 1361 1539 1881 4083 5643 12249 14971 16929 25859 36747 44913 77577 110241 134739 232731 284449 404217 698193 853347 1212651 2094579 2560041 7680123 23040369