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20374344 = 2332282977
BaseRepresentation
bin100110110111…
…0001101001000
31102100010100100
41031232031020
520203434334
62004405400
7335115264
oct115561510
942303310
1020374344
1110556601
1269a6860
1342b4933
1429c50a4
151bc6c99
hex136e348

20374344 has 24 divisors (see below), whose sum is σ = 55180710. Its totient is φ = 6791424.

The previous prime is 20374339. The next prime is 20374351. The reversal of 20374344 is 44347302.

It can be written as a sum of positive squares in only one way, i.e., 12320100 + 8054244 = 3510^2 + 2838^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×203743442 = 830227786860672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141417 + ... + 141560.

Almost surely, 220374344 is an apocalyptic number.

20374344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20374344 is an abundant number, since it is smaller than the sum of its proper divisors (34806366).

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

20374344 is a wasteful number, since it uses less digits than its factorization.

20374344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282989 (or 282982 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 27.

The square root of 20374344 is about 4513.7948557727. The cubic root of 20374344 is about 273.1248472962.

It can be divided in two parts, 203 and 74344, that added together give a palindrome (74547).

The spelling of 20374344 in words is "twenty million, three hundred seventy-four thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 282977 565954 848931 1131908 1697862 2263816 2546793 3395724 5093586 6791448 10187172 20374344