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11438037 = 331332587
BaseRepresentation
bin101011101000…
…011111010101
3210112010001000
4223220133111
510412004122
61045053513
7166136022
oct53503725
923463030
1011438037
116502626
1239b7299
1324a6290
14173a549
15100e0ac
hexae87d5

11438037 has 16 divisors (see below), whose sum is σ = 18249280. Its totient is φ = 7038576.

The previous prime is 11438027. The next prime is 11438051. The reversal of 11438037 is 73083411.

It is not a de Polignac number, because 11438037 - 220 = 10389461 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11438037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11438027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15943 + ... + 16644.

It is an arithmetic number, because the mean of its divisors is an integer number (1140580).

Almost surely, 211438037 is an apocalyptic number.

It is an amenable number.

11438037 is a deficient number, since it is larger than the sum of its proper divisors (6811243).

11438037 is a wasteful number, since it uses less digits than its factorization.

11438037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32609 (or 32603 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 11438037 is about 3382.0167060498. The cubic root of 11438037 is about 225.3117456434.

It can be divided in two parts, 1143 and 8037, that added together give a triangular number (9180 = T135).

The spelling of 11438037 in words is "eleven million, four hundred thirty-eight thousand, thirty-seven".

Divisors: 1 3 9 13 27 39 117 351 32587 97761 293283 423631 879849 1270893 3812679 11438037