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38914239 = 3713142543
BaseRepresentation
bin1001010001110…
…0100010111111
32201020001022010
42110130202333
534430223424
63510022303
7651523410
oct224344277
981201263
1038914239
111aa69931
1211047993
1380a65a0
14524d807
15363a229
hex251c8bf

38914239 has 16 divisors (see below), whose sum is σ = 63859712. Its totient is φ = 20526048.

The previous prime is 38914231. The next prime is 38914247. The reversal of 38914239 is 93241983.

It is an interprime number because it is at equal distance from previous prime (38914231) and next prime (38914247).

It is not a de Polignac number, because 38914239 - 23 = 38914231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 38914197 and 38914206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38914231) 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, 70999 + ... + 71544.

It is an arithmetic number, because the mean of its divisors is an integer number (3991232).

Almost surely, 238914239 is an apocalyptic number.

38914239 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

38914239 is a deficient number, since it is larger than the sum of its proper divisors (24945473).

38914239 is a wasteful number, since it uses less digits than its factorization.

38914239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142566.

The product of its digits is 46656, while the sum is 39.

The square root of 38914239 is about 6238.1278441532. The cubic root of 38914239 is about 338.8723860737.

The spelling of 38914239 in words is "thirty-eight million, nine hundred fourteen thousand, two hundred thirty-nine".

Divisors: 1 3 7 13 21 39 91 273 142543 427629 997801 1853059 2993403 5559177 12971413 38914239